Method and system for detecting thermal insulation performance of low-carbon building material

Abstract

The invention relates to the technical field of building materials, and particularly discloses a method and a system for detecting the thermal insulation performance of a low-carbon building material, which are characterized in that a plurality of groups of thermal insulation mortar samples with different formula ratios are prepared into thermal insulation mortar test pieces with standard sizes, and the thermal insulation mortar test pieces corresponding to the formula ratios are maintained under standard environmental conditions to obtain the thermal insulation performance of the low-carbon building material. The cured thermal insulation mortar test piece corresponding to each formula ratio is obtained; collecting climate data of an area where the thermal insulation mortar is to be applied, simulating the climate data of the area where the thermal insulation mortar is to be applied by using a climate simulation device, placing the thermal insulation mortar test pieces corresponding to the formula ratios after maintenance in the climate simulation device, and performing thermal insulation on the thermal insulation mortar test pieces corresponding to the formula ratios; according to the test result of the thermal insulation mortar test piece corresponding to each formula ratio, the optimal formula ratio of the thermal insulation mortar suitable for the to-be-applied area is screened, so that the energy-saving effect and the living comfort of the building can be improved, and the construction quality and the durability of the building are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building materials and relates to a method and system for detecting the thermal insulation performance of low-carbon building materials. Background Art

[0002] Insulating mortar is a material used for the thermal insulation of building exterior walls, and its main function is to reduce the energy loss of buildings and improve indoor thermal comfort. First of all, the thermal insulation performance is directly related to the energy-saving effect of buildings. High-efficiency insulating mortar can significantly reduce the energy consumption of winter heating and summer air conditioning, thereby reducing energy consumption and operating costs, which is of great significance to environmental protection and resource conservation. Secondly, the detection of thermal insulation performance can ensure product quality and construction effects. Conducting the detection of thermal insulation performance is not only a requirement for building energy conservation and environmental protection, but also a guarantee for building quality and safety. To sum up, the detection of the thermal insulation performance of insulating mortar has important economic, environmental and social significance, and is an important measure to ensure the energy-saving effect and service life of buildings.

[0003] The current technology's unified treatment of the formula ratio of insulating mortar fails to compound according to the different climatic conditions of the application regions, and this approach has various drawbacks: First of all, the climatic conditions in different regions vary significantly. For example, the winters in the northern regions are severely cold, while the summers in the southern regions are hot and humid. The unified formula ratio cannot be optimized for these differences, resulting in the insulating mortar failing to achieve the best thermal insulation effect in some regions. For example, in the cold north, if the thermal conductivity of the insulating mortar is too high, it may lead to a large amount of indoor heat loss in winter and increase the heating cost; while in the south, if the humidity adjustment performance of the insulating mortar is insufficient, it may lead to too high indoor humidity in summer and affect the living comfort. The unified formula ratio of insulating mortar has significant drawbacks when applied under different climatic conditions and cannot fully meet the actual needs of each region. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention provides a method and system for detecting the thermal insulation performance of low-carbon building materials to solve the above technical problems.

[0005] In order to achieve the above and other purposes, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, the present invention provides a method for detecting the thermal insulation performance of low-carbon building materials, and the method includes the following steps:

[0007] Select different types of insulating mortar raw materials, design a variety of formula ratios, where the proportions of the insulating mortar raw materials in each formula ratio are different, prepare several groups of insulating mortar samples with different formula ratios, and uniformly mix the insulating mortar samples of each formula ratio;

[0008] Pour the thermal insulation mortar samples corresponding to each mixing ratio into a mold to prepare thermal insulation mortar specimens of standard size, and cure the thermal insulation mortar specimens corresponding to each mixing ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each mixing ratio;

[0009] Collect the climate data of the area where the thermal insulation mortar is to be applied, use a climate simulation device to simulate the climate data of the area to be applied, place the cured thermal insulation mortar specimens corresponding to each mixing ratio in the climate simulation device, and perform heat preservation and heat insulation on the thermal insulation mortar specimens corresponding to each mixing ratio;

[0010] According to the test results of the thermal insulation mortar specimens corresponding to each mixing ratio, screen out the best mixing ratio of the thermal insulation mortar suitable for the area to be applied.

[0011] Based on the above embodiments, the determination logic of the cured thermal insulation mortar specimens corresponding to each mixing ratio is as follows:

[0012] Obtain the total number of prepared thermal insulation mortar specimens corresponding to each mixing ratio, and extract a preset number ratio of thermal insulation mortar specimens from them as the cured test thermal insulation mortar specimens corresponding to each mixing ratio, and then evenly divide them according to the preparation number into the compressive test thermal insulation mortar specimens, flexural test thermal insulation mortar specimens, dry shrinkage test thermal insulation mortar specimens and water absorption test thermal insulation mortar specimens corresponding to each mixing ratio;

[0013] Obtain the number of compressive test thermal insulation mortar specimens, apply a pressure load to each compressive test thermal insulation mortar specimen corresponding to each mixing ratio at a constant loading rate through a compression testing machine, and read the maximum bearing pressure load value and the compressed area of each compressive test thermal insulation mortar specimen corresponding to each mixing ratio; therefrom, calculate the compressive strength of the test thermal insulation mortar specimens corresponding to each mixing ratio k is the number of each mixing ratio;

[0014] Obtain the number A of flexural test thermal insulation mortar specimens, start a flexural testing machine, apply a pressure load at a constant loading rate, and record the maximum applied pressure load F when each flexural test thermal insulation mortar specimen corresponding to each mixing ratio fails kc ; Calculate the flexural strength of the test thermal insulation mortar specimens of each mixing ratio a and b are respectively the width and thickness of the standard size corresponding to the thermal insulation mortar specimen, L kc is the support distance of the flexural testing machine corresponding to the cth flexural test thermal insulation mortar specimen corresponding to the kth mixing ratio, and c is the number of each flexural test thermal insulation mortar specimen, c = 1, 2,... A;

[0015] Obtain the number B of the shrinkage test thermal insulation mortar specimens, place each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio in a humid environment for a set curing duration, and after the set curing duration ends, confirm the wet length CD of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio kd ; Move each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio to a drying oven and dry until the mass of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio is constant, and then confirm the dry length CD' of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio kd ; Calculate the shrinkage rate of the test thermal insulation mortar specimens of each formulation ratio d is the number of each shrinkage test thermal insulation mortar specimen, d = 1, 2,... B, and B is the total number of shrinkage test thermal insulation mortar specimens;

[0016] According to the test method of the shrinkage test thermal insulation mortar specimens, inversely test and calculate the water absorption rate of the test thermal insulation mortar specimens of each formulation ratio

[0017] On the basis of the above embodiments, the determination and calculation process of the cured thermal insulation mortar specimens corresponding to each formulation ratio is as follows:

[0018] Calculate the strength of the cured test thermal insulation mortar specimens corresponding to each formulation ratio

[0019] Calculate the stability of the cured test thermal insulation mortar specimens corresponding to each formulation ratio where ω 测干 、ω 测吸 are the weight ratio indices corresponding to the shrinkage test and the side water test respectively, and ω 测干 +ω 测吸 = 1;

[0020] If the strength of the cured test thermal insulation mortar specimens corresponding to each formulation ratio is greater than or equal to the predefined thermal insulation mortar strength threshold and the stability of the cured test thermal insulation mortar specimens corresponding to each formulation ratio is greater than or equal to the predefined thermal insulation mortar stability threshold, then mark the thermal insulation mortar specimens corresponding to this formulation ratio as the cured thermal insulation mortar specimens, otherwise it is determined that the thermal insulation mortar specimens corresponding to this formulation ratio still need to be cured continuously, and in this way, the cured thermal insulation mortar specimens corresponding to each formulation ratio are obtained by cycling.

[0021] On the basis of the above embodiments, the climate data of the area where the thermal insulation mortar is to be applied specifically includes temperature change data and humidity change data.

[0022] On the basis of the above embodiments, the specific test logic for thermal insulation of the thermal insulation mortar specimens corresponding to each formulation ratio is as follows:

[0023] Select each thermal insulation mortar specimen other than the cured test thermal insulation mortar specimens corresponding to each formulation ratio as the thermal insulation mortar specimen;

[0024] Place the insulation mortar specimens corresponding to each formulation ratio in the middle test chamber of the climate simulation device. According to the temperature change data and humidity change data of the area where the insulation mortar is to be applied, set different test conditions between the cold chamber and the hot chamber in the climate simulation device, record the temperatures of the cold chamber and the hot chamber under each test condition, and calculate the temperature gradient of the insulation mortar specimens corresponding to each formulation ratio under each test condition. y is the number of each test condition, y = 1, 2,... N, are the temperatures of the hot chamber and the cold chamber under the y-th test condition respectively;

[0025] Furthermore, calculate the thermal resistance of the insulation mortar specimens corresponding to each formulation ratio under each test condition.

[0026] On the basis of the above embodiments, calculate the thermal resistance of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition. The specific calculation logic is as follows:

[0027] Obtain the thermal conductivity DR of the remaining insulation mortar specimens corresponding to each formulation ratio k , and calculate the heat flux density ε of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition ky =-DR k ×μ ky ;

[0028] Thus, calculate the thermal resistance of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition

[0029] On the basis of the above embodiments, before screening the optimal formulation ratio of the insulation mortar suitable for the area to be applied, it is also necessary to evaluate the performance stability of the insulation mortar specimens corresponding to each formulation ratio under each test condition. The specific test logic is as follows:

[0030] Test the compressive strength, flexural strength, dry shrinkage rate and water absorption rate of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition;

[0031] Standardize the compressive strength, flexural strength, dry shrinkage rate and water absorption rate of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition to obtain the standardized compressive strength, standardized flexural strength, standardized dry shrinkage rate and standardized water absorption rate of the remaining insulation mortar specimens corresponding to each formulation ratio under each test condition;

[0032] Furthermore, comprehensively calculate the performance stability evaluation coefficients of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition. If the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to a certain formulation ratio under a certain test condition is less than the set evaluation threshold, then retest the remaining thermal insulation mortar specimens corresponding to this formulation ratio under this test condition until the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to this formulation ratio under this test condition is greater than or equal to the set evaluation threshold.

[0033] On the basis of the above embodiments, screen the best formulation ratio of the thermal insulation mortar suitable for the area to be applied. The specific screening process is as follows:

[0034] Calculate the average thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions N is the total number of test conditions;

[0035] Calculate the standard deviation of the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions

[0036] Define the comprehensive evaluation index value of the remaining thermal insulation mortar specimens corresponding to each formulation ratio is the weight coefficient, used to balance the influence of the average thermal resistance and the standard deviation, and then select the formulation ratio with the largest comprehensive evaluation index value as the best formulation ratio of the thermal insulation mortar suitable for the area to be applied.

[0037] On the other hand, the present invention provides a detection system for the thermal insulation performance of low-carbon building materials. The system includes a thermal insulation mortar sample preparation module, a thermal insulation mortar sample curing module, a thermal insulation mortar sample testing module, and a thermal insulation mortar formulation screening module. The above-mentioned modules are connected by wired and / or wireless connection methods to realize data transmission between the modules;

[0038] The thermal insulation mortar sample preparation module is used to select different types of thermal insulation mortar raw materials, design multiple formulation ratios, where the proportions of the thermal insulation mortar raw materials in each formulation ratio are different, prepare several groups of thermal insulation mortar samples with different formulation ratios, and uniformly mix the thermal insulation mortar samples of each formulation ratio;

[0039] The thermal insulation mortar sample curing module is used to pour the mixed thermal insulation mortar samples corresponding to each formulation ratio into a mold to prepare standard-sized thermal insulation mortar specimens, and cure the thermal insulation mortar specimens corresponding to each formulation ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio;

[0040] The thermal insulation mortar sample testing module is used to collect the climate data of the area where the thermal insulation mortar is to be applied. Using a climate simulation device, it simulates the climate data of the area to be applied. Place the cured thermal insulation mortar specimens corresponding to each formulation ratio into the climate simulation device to conduct thermal insulation on the thermal insulation mortar specimens corresponding to each formulation ratio.

[0041] The thermal insulation mortar formulation screening module is used to screen the best formulation ratio of the thermal insulation mortar suitable for the area to be applied based on the test results of the thermal insulation mortar specimens corresponding to each formulation ratio.

[0042] As described above, a method and system for detecting the thermal insulation performance of low-carbon building materials provided by the present invention has at least the following beneficial effects:

[0043] A method and system for detecting the thermal insulation performance of low-carbon building materials provided by the present invention. By preparing several groups of thermal insulation mortar samples with different formulation ratios, uniformly mixing each thermal insulation mortar sample with a specific formulation ratio, preparing standard-sized thermal insulation mortar specimens, and curing the thermal insulation mortar specimens corresponding to each formulation ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio; collecting the climate data of the area where the thermal insulation mortar is to be applied, using a climate simulation device to simulate the climate data of the area to be applied, placing the cured thermal insulation mortar specimens corresponding to each formulation ratio into the climate simulation device to conduct thermal insulation on the thermal insulation mortar specimens corresponding to each formulation ratio; screening the best formulation ratio of the thermal insulation mortar suitable for the area to be applied based on the test results of the thermal insulation mortar specimens corresponding to each formulation ratio. On the one hand, it can significantly improve the energy-saving effect of buildings. Different climate conditions have different requirements for thermal insulation, and targeted optimization of the formulation can ensure that the thermal insulation mortar can achieve the best performance in various climates; on the other hand, optimizing the formulation helps to improve the construction quality and the durability of buildings: the construction environments and process requirements vary under different climate conditions, and targeted optimization of the formulation can ensure that the thermal insulation mortar can maintain good performance under various construction conditions; in summary, by compounding according to different climate conditions in the application area and targeted optimization of the thermal insulation mortar formulation, it can not only improve the energy-saving effect and residential comfort of buildings, but also enhance the material utilization efficiency, reduce costs, improve the construction quality and the durability of buildings, and promote technological innovation and industry development. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0045] Figure 1 It is a connection schematic diagram of each step of the method of the present invention.

[0046] Figure 2 This is a schematic diagram of the connection of each module of the system of the present invention. Detailed implementation manners

[0047] The following will combine the embodiments of the present invention. The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claims, they shall fall within the protection scope of the present invention.

[0048] Embodiment 1

[0049] Please refer to Figure 1 As shown, a method for detecting the heat insulation performance of a low-carbon building material, the method includes the following steps:

[0050] Select raw materials of different types of thermal insulation mortar, design a variety of formulation ratios, where the proportions of the raw materials of each thermal insulation mortar are different in each formulation ratio, prepare several groups of thermal insulation mortar samples with different formulation ratios, and uniformly mix the thermal insulation mortar samples of each formulation ratio;

[0051] Pour the mixed thermal insulation mortar samples corresponding to each formulation ratio into a mold, fill it in two layers, tamp it with a tamping rod after each layer is filled, and use a trowel to level the surface; prepare thermal insulation mortar specimens of standard size, and cure the thermal insulation mortar specimens corresponding to each formulation ratio under standard conditions (temperature 20±2°C, relative humidity above 95%) for 28 days to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio;

[0052] As a preferred solution, the determination logic of the cured thermal insulation mortar specimens corresponding to each formulation ratio is:

[0053] Obtain the total number of prepared thermal insulation mortar specimens corresponding to each formulation ratio, and extract a preset number ratio of thermal insulation mortar specimens from them as the cured test thermal insulation mortar specimens corresponding to each formulation ratio, and then evenly divide them into compression test thermal insulation mortar specimens, flexural test thermal insulation mortar specimens, dry shrinkage test thermal insulation mortar specimens, and water absorption test thermal insulation mortar specimens corresponding to each formulation ratio according to the preparation number;

[0054] For example, assume that the total number of prepared thermal insulation mortar specimens corresponding to each formulation ratio is 16, then 8 are selected as the cured test thermal insulation mortar specimens corresponding to each formulation ratio, and the number of specimens of the compression test thermal insulation mortar specimens, flexural test thermal insulation mortar specimens, dry shrinkage test thermal insulation mortar specimens, and water absorption test thermal insulation mortar specimens corresponding to each formulation ratio is 2 respectively;

[0055] Obtain the number of compression test thermal insulation mortar specimens. Apply a pressure load to each compression test thermal insulation mortar specimen corresponding to each formulation ratio through a compression testing machine at a constant loading rate. During the process of gradually increasing the pressure load, synchronously record the pressure load values of each compression test thermal insulation mortar specimen corresponding to each formulation ratio until each compression test thermal insulation mortar specimen corresponding to each formulation ratio fails. Then, read the maximum bearing pressure load values of each compression test thermal insulation mortar specimen corresponding to each formulation ratio, and synchronously obtain the compression areas of each compression test thermal insulation mortar specimen corresponding to each formulation ratio by the compression testing machine. Take the maximum bearing pressure load values of each compression test thermal insulation mortar specimen corresponding to each formulation ratio as the numerator of the fraction, and take the compression areas of each compression test thermal insulation mortar specimen of each formulation ratio as the denominator of the fraction. Thus, calculate the compression strength of each compression test thermal insulation mortar specimen corresponding to each formulation ratio, and calculate its mean value to obtain the compression strength of the test thermal insulation mortar specimens corresponding to each formulation ratio k is the number of each formulation ratio;

[0056] Obtain the number A of flexural test thermal insulation mortar specimens. Place each flexural test thermal insulation mortar specimen corresponding to each formulation ratio on the supports of a flexural testing machine, making the long sides of each flexural test thermal insulation mortar specimen corresponding to each formulation ratio parallel to the supports, and at the same time aligning the centers of each flexural test thermal insulation mortar specimen corresponding to each formulation ratio with the center of the loading head of the flexural testing machine. Start the flexural testing machine and apply a pressure load at a constant loading rate, and record the maximum applied pressure load F when each flexural test thermal insulation mortar specimen corresponding to each formulation ratio fails kc ; Calculate the flexural strength of the test thermal insulation mortar specimens of each formulation ratio a and b are respectively the width and thickness of the standard size corresponding to the thermal insulation mortar specimen, and L kc is the support spacing of the flexural testing machine corresponding to the c-th flexural test thermal insulation mortar specimen corresponding to the k-th formulation ratio, c is the number of each flexural test thermal insulation mortar specimen, c = 1, 2,... A, and A is the total number of flexural test thermal insulation mortar specimens;

[0057] Obtain the number B of dry shrinkage test thermal insulation mortar specimens. Place each dry shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio in a humid environment for a set curing time. After the set time ends, use a length measuring instrument to measure the lengths of each dry shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio, and take it as the wet length CD of each dry shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio kd; Then, move the dry shrinkage test thermal insulation mortar specimens corresponding to each formulation ratio to an oven. The drying temperature is usually fluctuating around 60 degrees Celsius. Dry until the mass of the dry shrinkage test thermal insulation mortar specimens corresponding to each formulation ratio is constant. The standard for constant mass is that the weight difference of the dry shrinkage test thermal insulation mortar specimens corresponding to each formulation ratio in two weighings does not exceed 0.1%. Then, use a length measuring instrument to measure the length of the dry shrinkage test thermal insulation mortar specimens corresponding to each formulation ratio, and take it as the drying length CD' of the dry shrinkage test thermal insulation mortar specimens corresponding to each formulation ratio. kd ; Calculate the dry shrinkage rate of the test thermal insulation mortar specimens of each formulation ratio. d is the number of each dry shrinkage test thermal insulation mortar specimen, d = 1, 2,... B, and B is the total number of dry shrinkage test thermal insulation mortar specimens.

[0058] According to the test method of the dry shrinkage test thermal insulation mortar specimens, calculate the water absorption rate of the test thermal insulation mortar specimens of each formulation ratio by reverse testing.

[0059] As an optimal solution, the determination calculation process of the cured thermal insulation mortar specimens corresponding to each formulation ratio is as follows:

[0060] Calculate the strength of the cured test thermal insulation mortar specimens corresponding to each formulation ratio.

[0061] Calculate the stability of the cured test thermal insulation mortar specimens corresponding to each formulation ratio. Where ω 测干 、ω 测吸 are the weight ratio indices corresponding to the dry shrinkage test and the side water test respectively, and ω 测干 +ω 测吸 = 1;

[0062] If the strength of the cured test thermal insulation mortar specimens corresponding to each formulation ratio is greater than or equal to the predefined thermal insulation mortar strength threshold and the stability of the cured test thermal insulation mortar specimens corresponding to each formulation ratio is greater than or equal to the predefined thermal insulation mortar stability threshold, then mark the thermal insulation mortar specimens corresponding to this formulation ratio as the cured thermal insulation mortar specimens. Otherwise, it is determined that the thermal insulation mortar specimens corresponding to this formulation ratio still need to be cured. In this way, cycle to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio.

[0063] Collect the climate data of the area where the thermal insulation mortar is to be applied. Use a climate simulation device to simulate the climate data of the area to be applied. Place the cured thermal insulation mortar specimens corresponding to each formulation ratio in the climate simulation device to carry out heat insulation for the thermal insulation mortar specimens corresponding to each formulation ratio.

[0064] As an optimal solution, the climate data of the area where the thermal insulation mortar is to be applied specifically includes temperature change data and humidity change data.

[0065] As an optimal solution, heat insulation is carried out on the thermal insulation mortar specimens corresponding to each formulation ratio. The specific test logic is as follows:

[0066] Place the remaining thermal insulation mortar specimens corresponding to each formulation ratio in the middle test chamber of the climate simulation device, and ensure good contact with the cold chamber and the hot chamber. According to the temperature change data and humidity change data of the area where the thermal insulation mortar is to be applied, set different test conditions between the cold chamber and the hot chamber in the climate simulation device. Use heaters and refrigeration equipment to control the temperatures of the hot chamber and the cold chamber respectively. Start the climate simulation device to make the cold chamber and the hot chamber reach the set temperatures and humidities within each test condition and stabilize for a period of time. Record the temperatures of the cold chamber and the hot chamber of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition in the climate simulation device, and calculate the temperature gradient of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition y is the number of each test condition, y = 1, 2,... N, are the temperatures of the hot chamber and the cold chamber under the y-th test condition respectively. f is the number of each remaining thermal insulation mortar specimen, f = 1, 2,... M, and M is the total number of all thermal insulation mortar specimens;

[0067] Conduct statistical analysis on the temperature change data of the area where the thermal insulation mortar is to be applied to determine the average temperature, maximum temperature, minimum temperature and temperature at a specific percentile (such as the 90th percentile temperature) of the area where the thermal insulation mortar is to be applied, and thus determine the temperature conditions of the cold chamber and the hot chamber in the climate simulation device:

[0068] Test normal temperature: It is the average temperature of the area where the thermal insulation mortar is to be applied;

[0069] Test low temperature: It is the minimum temperature of the area where the thermal insulation mortar is to be applied;

[0070] Test high temperature: It is the maximum temperature of the area where the thermal insulation mortar is to be applied;

[0071] Test medium temperature: It is the temperature at a specific percentile of the area where the thermal insulation mortar is to be applied;

[0072] Determine the humidity conditions of the cold chamber and the hot chamber in the climate simulation device in the same way as the determination method of the temperature conditions of the cold chamber and the hot chamber in the climate simulation device;

[0073] Arrange and combine the above four temperature conditions and four humidity conditions, and apply them to the cold chamber and the hot chamber in the climate simulation device respectively, and the temperatures and humidities of the cold chamber and the hot chamber in the climate simulation device do not repeat;

[0074] Furthermore, calculate the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition.

[0075] As a preferred solution, calculate the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition. The specific calculation logic is as follows:

[0076] Obtain the thermal conductivity DR of the remaining thermal insulation mortar specimens corresponding to each formulation ratio k , and calculate the heat flux density ε of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition ky =-DR k ×μ ky ;

[0077] From this, calculate the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition

[0078] As a preferred solution, according to the test methods of the compression test thermal insulation mortar specimens, flexural test thermal insulation mortar specimens, dry shrinkage test thermal insulation mortar specimens, and water absorption test thermal insulation mortar specimens corresponding to each formulation ratio, under each test condition, conduct the same test on each remaining thermal insulation mortar specimen corresponding to each formulation ratio respectively. The compression strength, flexural strength, dry shrinkage rate, and water absorption rate of each remaining thermal insulation mortar specimen corresponding to each formulation ratio under each test condition are obtained through testing;

[0079] Perform normalization processing on the compression strength of each remaining thermal insulation mortar specimen corresponding to each formulation ratio under each test condition to obtain the normalized compression strength of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition According to the calculation method of the normalized compression strength of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition, calculate the normalized flexural strength of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition in the same way;

[0080] Perform normalization processing on the dry shrinkage rate of each remaining thermal insulation mortar specimen corresponding to each formulation ratio under each test condition to obtain the normalized dry shrinkage rate of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition According to the calculation method of the normalized dry shrinkage rate of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition, calculate the normalized water absorption rate of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition in the same way;

[0081] Furthermore, comprehensively calculate the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition If the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to a certain formulation ratio under a certain test condition is less than the set evaluation threshold, then re-test the remaining thermal insulation mortar specimens corresponding to that formulation ratio under that test condition until the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to that formulation ratio under that test condition is greater than or equal to the set evaluation threshold.

[0082] According to the test results of the thermal insulation mortar specimens corresponding to each formulation ratio, screen out the optimal formulation ratio of the thermal insulation mortar suitable for the area to be applied.

[0083] As an optimal solution, the process of screening out the optimal formulation ratio of the thermal insulation mortar suitable for the area to be applied is as follows:

[0084] Calculate the average thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions N is the total number of test conditions;

[0085] Calculate the standard deviation of the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions

[0086] Define the comprehensive evaluation index value of the remaining thermal insulation mortar specimens corresponding to each formulation ratio is the weight coefficient, which is used to balance the influence of the average thermal resistance and the standard deviation, and then select the formulation ratio with the largest comprehensive evaluation index value as the optimal formulation ratio of the thermal insulation mortar suitable for the area to be applied.

[0087] Example 2

[0088] Please refer to Figure 2 As shown in the figure, a detection system for the thermal insulation performance of low-carbon building materials, which includes a thermal insulation mortar sample preparation module, a thermal insulation mortar sample curing module, a thermal insulation mortar sample testing module and a thermal insulation mortar formulation screening module. The above-mentioned each module is connected by wired and / or wireless connection methods to realize data transmission between each module;

[0089] The thermal insulation mortar sample preparation module is used to select different types of thermal insulation mortar raw materials, design a variety of formulation ratios, where the proportions of each thermal insulation mortar raw material in each formulation ratio are different, prepare several groups of thermal insulation mortar samples with different formulation ratios, and uniformly mix the thermal insulation mortar samples of each formulation ratio;

[0090] The thermal insulation mortar sample curing module is used to pour the mixed thermal insulation mortar samples corresponding to each formulation ratio into a mold to prepare standard-sized thermal insulation mortar specimens, and cure the thermal insulation mortar specimens corresponding to each formulation ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio;

[0091] The thermal insulation mortar sample testing module is used to collect the climate data of the area where the thermal insulation mortar is to be applied, use a climate simulation device to simulate the climate data of the area to be applied, place the cured thermal insulation mortar specimens corresponding to each formulation ratio in the climate simulation device, and perform thermal insulation on the thermal insulation mortar specimens corresponding to each formulation ratio;

[0092] The thermal insulation mortar ratio screening module is used to screen the optimal formula ratio of the thermal insulation mortar suitable for the area to be applied according to the test results of the thermal insulation mortar specimens corresponding to each formula ratio.

[0093] It should be understood that in various embodiments of the present application, the magnitude of the sequence numbers of the above processes does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0094] It should be understood that determining B based on A does not mean determining B only based on A, but also B can be determined based on A and / or other information.

[0095] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0096] Finally: The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should all be included within the protection scope of the present invention.

Claims

1. A method for detecting the heat insulation performance of a low-carbon building material, characterized in that, Including: Select different types of raw materials for thermal insulation mortar, design multiple formula ratios, where the proportions of the raw materials for each thermal insulation mortar are different in each formula ratio, prepare several groups of thermal insulation mortar samples with different formula ratios, and uniformly mix the thermal insulation mortar samples for each formula ratio; Pour the mixed thermal insulation mortar samples corresponding to each formula ratio into a mold to prepare thermal insulation mortar specimens of standard size, and cure the thermal insulation mortar specimens corresponding to each formula ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each formula ratio; Collect the climate data of the area where the thermal insulation mortar is to be applied, use a climate simulation device to simulate the climate data of the area to be applied, place the cured thermal insulation mortar specimens corresponding to each formula ratio in the climate simulation device, and perform heat insulation on the thermal insulation mortar specimens corresponding to each formula ratio; According to the test results of the thermal insulation mortar specimens corresponding to each formula ratio, screen the best formula ratio of the thermal insulation mortar suitable for the area to be applied.

2. The thermal insulation performance detection method of a low-carbon building material according to claim 1, characterized in that The determination logic of the cured thermal insulation mortar specimens corresponding to each formula ratio is as follows: Obtain the total number of prepared thermal insulation mortar specimens corresponding to each formula ratio, and extract a preset number proportion of the thermal insulation mortar specimens from them as the cured thermal insulation mortar specimens for testing corresponding to each formula ratio, and then evenly divide them according to the number of preparations into the compressive test thermal insulation mortar specimens, flexural test thermal insulation mortar specimens, dry shrinkage test thermal insulation mortar specimens, and water absorption test thermal insulation mortar specimens corresponding to each formula ratio; Obtain the number of the thermal insulation mortar specimens for the compression test. Apply a pressure load to each thermal insulation mortar specimen corresponding to each formulation ratio at a constant loading rate through a compression testing machine, and read the maximum bearing pressure load value and the compression area of each thermal insulation mortar specimen corresponding to each formulation ratio; thus, calculate the compression strength of the thermal insulation mortar specimens corresponding to each formulation ratio. k is the number of each formulation ratio; Obtain the number A of the thermal insulation mortar specimens for the flexural strength test. Start the flexural strength testing machine and apply a pressure load at a constant loading rate. Record the maximum applied pressure load F at the failure of each thermal insulation mortar specimen for flexural strength test corresponding to each formulation ratio. kc Calculate the flexural strength of the thermal insulation mortar specimens for the test corresponding to each formulation ratio. a and b are respectively the width and thickness of the standard size corresponding to the thermal insulation mortar specimens, and L kc is the support distance of the flexural strength testing machine corresponding to the c-th thermal insulation mortar specimen for flexural strength test corresponding to the k-th formulation ratio. c is the number of each thermal insulation mortar specimen for flexural strength test, c = 1, 2,... A. Obtain the number B of the shrinkage test thermal insulation mortar specimens, place each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio in a humid environment for a set curing duration, and after the set duration ends, confirm the wet length CD of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio kd ; Move each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio to a drying oven and dry until the mass of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio is constant, and then confirm the dry length CD' of each shrinkage test thermal insulation mortar specimen corresponding to each formulation ratio kd ; Calculate the shrinkage rate of the test thermal insulation mortar specimens for each formulation ratio d is the number of each shrinkage test thermal insulation mortar specimen, d = 1, 2,... B; The water absorption rate of the tested thermal insulation mortar specimens with each formulation ratio is calculated by reverse testing according to the testing method of the dry-shrinkage tested thermal insulation mortar specimens 3. The method for detecting the heat insulation performance of a low-carbon building material according to claim 2, wherein, The determination calculation process of the cured thermal insulation mortar specimens corresponding to each formula ratio is as follows: Calculate the strength of the cured and tested thermal insulation mortar specimens corresponding to each formulation ratio Calculate the stability of the cured and tested thermal insulation mortar specimens corresponding to each formulation ratio where ω 测干 , ω 测吸 are the weight ratio indices corresponding to the dry shrinkage test and the side water test respectively, and ω 测干 + ω 测吸 = 1; If the strength of the cured thermal insulation mortar specimens corresponding to each formula ratio is greater than or equal to the predefined thermal insulation mortar strength threshold and the stability of the cured thermal insulation mortar specimens corresponding to each formula ratio is greater than or equal to the predefined thermal insulation mortar stability threshold, then mark the thermal insulation mortar specimens corresponding to this formula ratio as the cured thermal insulation mortar specimens, otherwise determine that the thermal insulation mortar specimens corresponding to this formula ratio still need to be cured, and in this way, cycle to obtain the cured thermal insulation mortar specimens corresponding to each formula ratio.

4. The thermal insulation performance detection method of a low-carbon building material according to claim 1, characterized in that The climate data of the area where the thermal insulation mortar is to be applied specifically includes temperature change data and humidity change data.

5. The method for detecting the heat insulation performance of a low-carbon building material according to claim 4, characterized in that The specific test logic for performing heat insulation on the thermal insulation mortar specimens corresponding to each formula ratio is as follows: Place the remaining thermal insulation mortar specimens corresponding to each formulation ratio in the middle test chamber of the climate simulation device. According to the temperature change data and humidity change data of the area where the thermal insulation mortar is to be applied, set different test conditions between the cold chamber and the hot chamber in the climate simulation device, record the temperatures of the cold chamber and the hot chamber of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition in the climate simulation device, and calculate the temperature gradient of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition. y is the number of each test condition, y = 1, 2,... N. They are the temperatures of the hot chamber and the cold chamber under the y-th test condition respectively. f is the number of the remaining thermal insulation mortar specimens, f = 1, 2,... M, and M is the total number of all thermal insulation mortar specimens. Furthermore, calculate the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formula ratio under each test condition.

6. The method for detecting the heat insulation performance of a low-carbon building material according to claim 5, characterized in that, The specific calculation logic for calculating the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formula ratio under each test condition is as follows: Obtain the thermal conductivity DR of the remaining thermal insulation mortar specimens corresponding to each formulation ratio k , and calculate the heat flux density ε of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition ky = -DR k × μ ky ; Calculate the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition accordingly 7. The method for detecting the heat insulation performance of a low-carbon building material according to claim 6, characterized in that Before screening the best formula ratio of the thermal insulation mortar suitable for the area to be applied, it is also necessary to evaluate the performance stability of the thermal insulation mortar specimens corresponding to each formula ratio under each test condition. The specific test logic is as follows: Test the compressive strength, flexural strength, dry shrinkage rate, and water absorption rate of the remaining thermal insulation mortar specimens corresponding to each formula ratio under each test condition; Perform standardization processing on the compressive strength, flexural strength, dry shrinkage rate, and water absorption rate of the remaining thermal insulation mortar specimens corresponding to each formula ratio under each test condition to obtain the standardized compressive strength, standardized flexural strength, standardized dry shrinkage rate, and standardized water absorption rate of the remaining thermal insulation mortar specimens corresponding to each formula ratio under each test condition; Furthermore, comprehensively calculate the performance stability evaluation coefficients of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under each test condition. If the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to a certain formulation ratio under a certain test condition is less than the set evaluation threshold, then re-test the remaining thermal insulation mortar specimens corresponding to this formulation ratio under this test condition until the performance stability evaluation coefficient of the remaining thermal insulation mortar specimens corresponding to this formulation ratio under this test condition is greater than or equal to the set evaluation threshold.

8. The thermal insulation performance detection method of a low-carbon building material according to claim 1, characterized in that Screen the best formulation ratio of the thermal insulation mortar suitable for the area to be applied. The specific screening process is as follows: Calculate the average thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions N is the total number of test conditions; Calculate the standard deviation of the thermal resistance of the remaining thermal insulation mortar specimens corresponding to each formulation ratio under all test conditions Define the comprehensive evaluation index values corresponding to the remaining thermal insulation mortar specimens for each formulation ratio is the weight coefficient, which is used to balance the effects of the average thermal resistance and the standard deviation, and then select the formulation ratio with the largest comprehensive evaluation index value as the best formulation ratio of the thermal insulation mortar suitable for the area to be applied 9. An insulation performance detection system for low-carbon building materials, characterized in that, It is realized based on the thermal insulation performance detection method of a low-carbon building material described in any one of claims 1-8, and includes a thermal insulation mortar sample preparation module, a thermal insulation mortar sample curing module, a thermal insulation mortar sample testing module, and a thermal insulation mortar formulation screening module. The above-mentioned modules are connected by wired and / or wireless connection methods to realize data transmission between the modules; The thermal insulation mortar sample preparation module is used to select different types of thermal insulation mortar raw materials, design multiple formulation ratios, where the proportions of each thermal insulation mortar raw material in each formulation ratio are different, prepare several groups of thermal insulation mortar samples with different formulation ratios, and uniformly mix the thermal insulation mortar samples of each formulation ratio. The thermal insulation mortar sample curing module is used to pour the mixed thermal insulation mortar samples corresponding to each formulation ratio into a mold to prepare thermal insulation mortar specimens with standard dimensions, and cure the thermal insulation mortar specimens corresponding to each formulation ratio under standard environmental conditions to obtain the cured thermal insulation mortar specimens corresponding to each formulation ratio. The thermal insulation mortar sample testing module is used to collect the climate data of the area where the thermal insulation mortar is to be applied, use a climate simulation device to simulate the climate data of the area to be applied, place the cured thermal insulation mortar specimens corresponding to each formulation ratio in the climate simulation device, and perform thermal insulation on the thermal insulation mortar specimens corresponding to each formulation ratio. The thermal insulation mortar formulation screening module is used to screen the best formulation ratio of the thermal insulation mortar suitable for the area to be applied according to the test results of the thermal insulation mortar specimens corresponding to each formulation ratio.

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