167 results about "Compressive strength test" patented technology

The invention discloses a wharf armor block quality detection method, and belongs to the technical field of concrete structure detection.The method comprises the steps that a surface model is constructed through a movable three-dimensional laser scanning device, and a high-risk defect area is recognized; performing encryption scanning and impact echo detection in the high-risk area by adopting a frequency-adjustable dual-mode flaw detection device to generate a three-dimensional defect distribution diagram; a core sample is drilled in the defect area for compressive strength testing, and the material performance is analyzed in combination with a non-contact infrared spectrum; and establishing a dynamic evaluation model, calculating a safety coefficient by integrating surface defects, internal defects and material discreteness data, and generating a three-dimensional visual report. The problems that a traditional detection method is low in efficiency, insufficient in internal defect positioning precision, one-sided in material performance evaluation and the like are solved, full-dimensional detection from the surface to the interior and from the macroscopic level to the microscopic level is achieved through a multi-source data fusion and closed-loop feedback mechanism, and the reliability of structural safety evaluation and the scientificity of maintenance decision are remarkably improved.

The invention relates to the technical field of concrete quality control, in particular to a concrete strength prediction system and method based on SVR. According to the invention, multi-dimensional data of rebound test, compressive strength test and carbonization depth value measurement are collected through the data acquisition module, rich input characteristics are provided for the model, and the prediction capability of the model is enhanced; and abnormal data is eliminated by adopting a Grubbs criterion, so that the quality and consistency of input data are ensured, and the influence of noise on model training is reduced. According to the method, a concrete rebound curved surface regression equation and a support vector regression model are established respectively and serve as prediction criteria, data fusion is carried out through a Kalman filter, and the prediction precision and reliability are further improved. Through automatic and standardized data processing procedures including data acquisition, preprocessing, regression prediction, SVR prediction, data fusion and the like, rapid prediction of the concrete strength is realized, and the prediction efficiency is improved.

The invention discloses a polystyrene plastic plate compression resistance testing device and method for refrigerator liner production, and relates to the technical field of refrigerator liner production. The device comprises a testing machine and a plastic plate, and further comprises a positioning unit which comprises a positioning assembly and a moving assembly; the pressure control hydraulic cylinder is arranged on the testing machine; the pressure applying testing unit comprises an adjusting assembly and a testing assembly, the adjusting assembly is used for adjusting the size of the pressed face of the plastic plate to achieve multi-area pressure applying, and the testing assembly is used for detecting and judging the testing result. The device has the advantages that the size of the compression surface of the plastic plate can be flexibly changed when the compression resistance of the polystyrene plastic plate is detected, the compression resistance of the plastic plate under different compression surfaces can be tested, the stress position of the plastic plate can be flexibly changed, the plastic plate cannot be damaged during testing, multi-position testing can be realized on the same plastic plate, and the testing efficiency is improved. The number of test samples is larger, and the test result is more accurate.

The invention relates to the technical field of geotechnical engineering material modification and industrial solid waste resource utilization, in particular to an industrial solid waste curing agent formula screening method for salinized loess improvement, which comprises the following steps: constructing a curing system with different industrial solid waste (such as fly ash, slag and steel slag) composite proportions, identifying the salt type and salt concentration of salinized loess, and determining the salt concentration of the salinized loess. The method comprises the following steps: preparing, maintaining and curing a sample, carrying out unconfined compressive strength test and X-ray diffraction (XRD) analysis, extracting peak areas of main reaction products, and calculating a structure-performance coupling mechanism index Mi = S / f7 (S is the XRD peak area, and f7 is the compressive strength of 7 days). The Mi value and the 28-day strength are used as judgment criteria, and a preferable formula with good structural product master control and strength development is screened out. The screening method provided by the invention has the advantages of distinguishable mechanism, quantifiable index, generalizable process and the like, and is suitable for formula design and engineering application of the industrial solid waste-based curing agent under the conditions of different salt concentrations and ion types.

The invention belongs to the technical field of concrete testing, and particularly provides mechanical property testing equipment and a detection method for recycled aggregate concrete. The mechanical property testing equipment for the recycled aggregate concrete comprises a machine body, a reversing unit, a pressure testing unit and two tension testing units, the pressure testing unit is arranged in the vertical direction, and the two tension testing units are arranged in the horizontal direction and do not interfere with each other in spatial position. The reversing unit can clamp a test piece and drive the test piece to move between the vertical direction and the horizontal direction, the placement state of the recycled aggregate concrete test piece is switched and changed in real time, and the flexibility of the equipment during mechanical property testing is improved; the recycled aggregate concrete test piece can meet the requirements of two different test items of compressive strength test and tensile strength test.

The invention relates to a method for detecting the strength of ultra-high performance concrete through a core drilling method with the diameter of 52 mm. The method comprises the following steps that S1, steel bar distribution is detected on a to-be-detected ultra-high performance concrete member through a steel bar detector, and a steel bar distribution grid is drawn; s2, core samples with the diameter of 52 mm are drilled in the grids; s3, after processing the core sample, carrying out a compressive strength test to obtain a compressive strength value of the core sample; and S4, presuming the structural concrete strength by utilizing a correction coefficient formula according to the compressive strength value of the ultra-high performance concrete core sample. According to the method, the optimal core sample size of UHPC sampling is obtained through a contrast test, a correction coefficient formula suitable for the UHPC optimal core sample is obtained according to test data, the obtained optimal core sample size meets the standard requirements, damage to the UHPC component is minimum, and the strength of the UHPC component can be obtained.

The invention discloses a performance detection method and system for ultra-high performance concrete, particularly relates to the technical field of building material performance detection, and aims to solve the problem of strength test discreteness caused by neglecting of an aging effect after high-temperature maintenance in an existing detection method. The method comprises the following steps: recording a first time point when a test piece is cooled at room temperature and a second time point when a press machine is loaded, and generating a comprehensive aging factor in combination with double quantitative analysis of a fiber pull-out fragment proportion and a crack fractal dimension in a damage process image; matching a strength correction coefficient from a preset table according to the aging factor, and dynamically calibrating a first compressive strength test result; accurate association between the aging damage mechanism and the macroscopic strength is achieved, and the reliability evaluation precision of the ultra-high performance concrete in major engineering is remarkably improved.

The invention discloses a concrete depth performance detection method, and relates to the technical field of concrete performance detection.The device comprises a shell, a top cover, a combined pressurizing mechanism, a combined supporting mechanism, a water inlet pipe, a camera, a controller and a high-pressure water supply device; the method comprises a compressive strength test mode, a permeability resistance test mode and a test piece permeability detection mode after different pressure loads. Through the design, observation and research on permeability change of the test piece after loading can be realized, and data reference is provided for actual engineering. Meanwhile, the device disclosed by the invention can be used for carrying out compressive strength test and permeability resistance test, so that the applicability of the device is effectively improved, the application range is widened, and convenience is provided for in-depth research of concrete performance.

The invention relates to a deep learning springback and audio-based rock compressive strength determination method. The method comprises the following steps: S1, collecting rock springback, springback instrument striking audio recording and rock uniaxial compressive strength test results through a large sample test; s2, carrying out data processing on the collected rock springback data and the springback striking audio set; s3, establishing a neural network calculation model based on the collected rock springback value, the characteristic value of the springback striking audio spectrum and the corresponding data of the uniaxial compressive strength of the rock; and S4, by collecting a rock rebound value and a characteristic value of a rebound strike audio spectrum, based on the established neural network calculation model, substituting the rock rebound value and the characteristic value of the rebound strike audio spectrum obtained by testing into the prediction model, and calculating the rock uniaxial compressive strength of the rock. The method performs deep learning training to obtain information and summarizes rules to establish the rock strength prediction model, and is suitable for various types of rocks.

The invention relates to the technical field of compressive strength detection equipment, in particular to aluminum profile compressive strength detection equipment which comprises a base, an inverted-U-shaped plate is connected to the top of the base, an electric clamp used for clamping and fixing an aluminum profile is arranged at the top of the base, and a display mechanism used for displaying the deformation sunken depth of the aluminum profile is arranged on the inverted-U-shaped plate. After the deformation sunken position of the aluminum profile extruded by the pressing block is aligned with the U-shaped push plate, the U-shaped push plate can be pushed under the action of the spring I to pull the piston rod to move downwards through the push-pull plate, so that the colored liquid in the measuring cylinder is pumped into the cylinder body through the liquid conveying pipe, and the liquid level variation of the colored liquid in the measuring cylinder is the deformation sunken depth of the extruded aluminum profile; the deformation sunken depth of the aluminum profile can be visually displayed through the scales on the measuring cylinder, so that the intuition and the convenience of the compressive strength detection of the aluminum profile are greatly improved, and the detection precision can be improved.

The invention discloses a mixing design-based ratio optimization method for a multi-source solid waste cementing material containing alkaline residues, which is used for optimizing to obtain an optimal ratio of five solid waste components according to a preset cementing material performance target, the alkaline residues are used as an alkaline excitation component, a D optimal mixing design method is adopted to determine a test point, a three-order normative polynomial model is established, and the optimal ratio of the five solid waste components is obtained. Setting constraint conditions of each solid waste component, testing the three-day compressive strength and 28-day compressive strength of the neat paste for each test point, obtaining a first fitting model based on compressive strength response and a second fitting model based on response according to test data, and according to a preset performance target, the first fitting model and the second fitting model, calculating the compressive strength of the neat paste according to the first fitting model and the second fitting model. Solving through a multi-objective optimization algorithm to obtain an optimal proportion of five solid waste components; according to the method, the problems of low efficiency and high cost of a traditional trial and error method are solved, and scientization and standardization of the proportion design of the multi-source solid waste cementing material are realized.

The invention discloses a 3D printing concrete quality regulation and control method, which comprises the following steps: S1, obtaining a plurality of same to-be-detected 3D printing concrete and component proportions, and flattening to form a cubic test piece; s2, obtaining the setting time of the concrete; s3, carrying out a penetration test on the solidified concrete to obtain the height of a water mark; s4, carrying out anti-erosion test on the solidified concrete to obtain the mass conversion amount and the volume conversion amount of the concrete; s5, testing the compressive strength of the solidified concrete to obtain crack occurrence time and crushing time; s6, changing the proportion of each component of the concrete, and repeating a plurality of groups of experiments to obtain detection values of the plurality of groups of experiments; s7, calculating values obtained by multiple groups of experiments to obtain an average value; and S8, comparing different detection values of different components with the average value to obtain the most suitable concrete. The stability of the performance of the concrete required by 3D printing is ensured, and the problems of cracks, water seepage and the like caused by improper mixing proportion are avoided.

The invention belongs to the field of coal seam coal rock mechanical property testing, and particularly relates to an accurate fidelity testing method for three-resistance strength parameters of coal rock before heat injection and permeability increase. Comprising the following steps: S1, sample preparation; s2, testing equipment configuration; s3, environment control; testing in the testing cover, setting the temperature and humidity in the testing cover to be consistent with the original sample environment, setting the temperature fluctuation range to be less than or equal to + / -1 DEG C, and maintaining parameter stability through an automatic adjusting system; s4, testing compressive strength; loading at a constant speed of 0.5 MPa / s, recording a failure load and calculating compressive strength c = Fc / A; s5, tensile strength testing; stretching at the speed of 1MPa / s, recording the fracture load and calculating the tensile strength r = 2Fr / piDt; s6, testing the shear strength; loading shear force at a constant speed, recording a failure load and calculating shear strength; S7, analyzing data; and after abnormal values are removed, generating a strength parameter curve, and comparing mechanical property data in different stress states. The accurate fidelity testing method for the three-resistance strength parameters of the coal rock before coal seam heat injection and permeability increase has the advantages of being easy and convenient to operate, rapid in testing, accurate in data and the like.

The invention discloses a strength prediction model construction method based on a solidified soil micro-pore structure, and relates to the technical field of dredged sludge solidification construction.The strength prediction model construction method based on the solidified soil micro-pore structure comprises the steps that sludge, rice hull ash and carbide slag are mixed according to a preset proportion, and a mixture is obtained; adding water into the mixture and curing to a preset age to obtain a cylindrical sample; performing unconfined compressive strength test on the cylindrical sample to obtain a damaged sample; cutting out a section center 5 mm * 5 mm area from the destroyed sample, and extracting the porosity; establishing a strength prediction model according to the mixing amount of the rice hull ash, the mixing amount of the carbide slag, the preset age and the porosity; according to the invention, the strength prediction model construction method based on the solidified soil micro-pore structure is established, so that the strength of the sludge solidified soil is predicted. Theoretical guidance and parameter optimization basis are provided for sludge solidification treatment engineering, and theoretical basis is provided for resource utilization of dredged sludge.

The invention relates to the technical field of asphalt concrete detection, in particular to an asphalt concrete strength detection device which comprises a press machine, an upper pressing plate and a lower placing table, the protective cover is movably arranged in a base of the press machine; the gas injection mechanism is linked with the protective cover and is driven by the upward movement of the protective cover; the annular air bag is arranged on the periphery of the lower placement table and communicated with the air injection mechanism, automatic centering of the concrete sample is achieved through radial pushing of the annular air bag, and the problem that it is difficult to guarantee that the sample and the pressing plate are strictly coaxial through traditional manual placement is solved; the air bag is completely deflated and shrunk before being pressurized and is separated from the side wall of the sample, so that the interference of lateral supporting force on a detection result is thoroughly eliminated, the phenomenon that the strength value is virtually high due to constraint stress is avoided, and the accuracy and repeatability of the compressive strength test are effectively improved.

The invention discloses a chitin-silicon-calcium-based modified material for rammed earth wall repair and a weather resistance evaluation method thereof, and belongs to the technical field of rammed earth wall repair, the chitin-silicon-calcium-based modified material comprises metakaolin, calcium oxide, quartz and chitin; the ratio of chitin to metakaolin to calcium oxide to quartz is 1: 1: 2: 4; the method comprises the following steps: pre-treating at the earlier stage of a test, evaluating freeze-thaw cycle performance, evaluating dry-wet cycle performance, evaluating salt corrosion resistance, analyzing association between a microstructure and a strength performance, and finally, revealing a material degradation rule and mechanism by combining scanning electron microscope observation, unconfined compressive strength test and crack rate analysis. When the freezing and thawing cycle number N is less than or equal to 5, the dry and wet cycle number I is less than or equal to 9, and the salt solution concentration c is less than or equal to 0.3 mol / L, the characteristics of freezing and thawing resistance, dry and wet resistance, salt erosion resistance and the like of the modified material are obviously improved; after the modified material is added, internal pores of plain soil can be filled, unconfined compressive strength of a soil body is enhanced, and long-term durability of the soil body is improved.

The invention relates to the field of concrete compressive strength tests, and discloses a concrete compressive strength test device and an operation method.The concrete compressive strength test device comprises a base, a lower pressing plate arranged at the top of the base, a support arranged at the top of the base, and a liftable upper pressing plate arranged at the top of the support; the two sides of the support are provided with two protection plates and a lifting assembly driving the two protection plates to ascend and descend in the vertical direction of the support at the same time. The liftable protective plate and the connecting frame are arranged on the two sides of the support and are synchronously driven through the lifting assembly, it is ensured that the protective plate and the connecting frame move reversely, and the cleaning assembly used for cleaning the upper pressing plate and the lower pressing plate is arranged on the connecting frame, so that potential harm to experimenters caused by splashing of fragments when concrete blocks are crushed is effectively prevented, and the experiment efficiency is improved. The cleaning assembly efficiently removes residues on the surfaces of the upper pressing plate and the lower pressing plate, and the situation that subsequent tests are affected by the residues is reduced, so that the consistency of test conditions is guaranteed, and the accuracy and reliability of data are improved.

The invention discloses a compressive strength testing device for ultra-light and high-strength mullite corundum lightweight bricks, relates to the technical field of mullite lightweight brick compressive testing, and is mainly aimed at completing accurate zoning of various stages in the process of compressive strength testing of lightweight brick masonry, that is, the phenomenon that the stress detection result of lightweight brick masonry is inaccurate due to insufficient or excessive pressure application; in the invention, on the premise of accurately knowing the stress damaged position of lightweight brick masonry and the various stages of crack generation and crushing, the compressive test is completed through automatic pressurizing action, avoiding the situation that the downtime is too long due to manual adjustment of the pressure size and the crack generation time period and the crushing time point are unclear, thereby facilitating accurate grading of the compressive strength of lightweight brick masonry, and then accurately controlling the various stages of the pressurizing action with the aid of a control system, so that the lightweight brick masonry can obtain accurate zoning of various stages in the process of compressive strength testing.

The application discloses a kind of quick detection methods of mineral powder activity.The steps are: taking activating agent and water configuration activation solution, according to GB / T 17671 "cement mortar strength test method" method, activation solution, mineral powder and sand are prepared and test block is formed, and after 15-17h in standard mortar curing box, formwork is dismantled, again, it is placed into oven and is maintained 6-8h after film coating, cooling to room temperature carries out compressive strength test, and the activity index of mineral powder is calculated by the calculation formula of compressive strength and activity index.The application utilizes alkali-sulfate and seed compound excitation characteristics, and combines high-temperature rapid curing system to quickly stimulate mineral powder activity, effectively shortens mineral powder hydration period, and the activity index detection time is shortened from original 28d to 1d by test block compressive strength, greatly improves mineral powder activity index detection efficiency, and accuracy is higher, and is suitable for promotion and application.

This invention discloses a method for obtaining the strength of a pillar considering friction factors, comprising: preparing rock samples with different aspect ratios and configuring contact surface materials with different tribological properties; determining the cohesion and friction coefficient of each contact surface material through shear testing, conducting compressive strength tests on rock samples with different contact surface materials to obtain rock sample strength data under different friction levels and aspect ratios; selecting a pillar strength calculation formula corresponding to the actual contact conditions between the pillar and the surrounding rock, calculating the strength of the target pillar under design conditions, and calculating the load on the pillar itself based on the pillar area bearing theory; calculating the pillar safety factor based on the pillar strength and the load, and optimizing the pillar design accordingly.

This invention discloses a concrete sample compressive strength testing device, relating to the field of concrete testing technology. It includes a base plate, with a testing cylinder and a vertical rod fixedly connected to the upper side of the base plate. A top plate is fixedly connected to the upper end of the vertical rod, and a hydraulic cylinder is fixedly connected to the upper side of the top plate. A cleaning unit is provided at the lower output end of the hydraulic cylinder. The cleaning unit includes a fixed frame, which is fixedly connected to the lower output end of the hydraulic cylinder. A fixed cylinder is fixedly connected to the lower side of the fixed frame, and a rotating shaft is rotatably connected to the inner side of the fixed cylinder. A mounting plate is fixedly connected to the lower end of the rotating shaft. This concrete sample compressive strength testing device uses a hydraulic cylinder to control the descent of the testing head to test the concrete sample. After testing, the testing head is controlled to rise, bringing a flexible scraper into contact with the testing head, and the testing head is controlled to rotate, cleaning debris from the surface of the testing head. The operation is simple and convenient for subsequent tests.

The utility model relates to the technical field of measuring area drawing devices, in particular to a concrete compressive strength measuring area drawing device which comprises a fixed bottom frame, a drawing ink plate is arranged in the fixed bottom frame, and a fixed button is arranged on the surface of the drawing ink plate. A handle is arranged on the surface of the printing plate, a printing ink disc is arranged in the printing plate, and a printing block is arranged on the surface of the printing ink disc; the concrete compressive strength test area drawing device has the beneficial effects that the concrete compressive strength test area drawing device can be frequently moved or tested at different places through the handle, the fixing ring is taken down from the surface of the printing plate, then the printing plate is taken out from the fixing bottom frame through the handle, an area needing to be tested is drawn, and a sealing cover is rotated to draw the concrete compressive strength test area. When ink in the printing block is insufficient, the printing block can be placed in the circular groove, downward pressure is applied to the printing block, ink in the printing ink disc is dip-dyed to the surface of the printing block through the arc-shaped hole in the surface of the pressing plate, and therefore drawing of the concrete compressive strength measuring area can be more conveniently completed.

The present application relates to the technical field of geological exploration, and discloses a rock mass compressive strength testing device, which comprises a rack, a working chamber is formed in the rack, a hydraulic cylinder is installed on the top of the rack, the output end of the hydraulic cylinder is located in the working chamber, and a pressing head is installed on the output end of the hydraulic cylinder; a placing table is installed on the bottom of the rack and used for placing a sample; and an automatic placing assembly is installed on the placing table and used for automatically moving the sample to the center of the top surface of the placing table. The present application can automatically adjust the position of the sample, quickly place the sample on the detection position on the placing table, and is safe and reliable to use, and the present application can conveniently clean the surface of the placing table, avoid the surface of the placing table from being covered with rock particles, and is more convenient to use.

The utility model relates to the technical field of compressive strength testing, in particular to a compressive strength testing machine for a curved surface sample, which comprises a bearing plate, a pressure sensor, a pressure sensor and a pressure sensor, a vertical rod is arranged at the bottom of the filter screen, a screwing rod is arranged at the bottom of the vertical rod, a storage groove is formed in the surface of the screwing rod, and a connecting pipe is arranged at the bottom of the bearing plate; the inserting rod is arranged on the surface of the connecting pipe; the device has the beneficial effects that a tested piece is placed on the surface of a bearing plate, the end part of a connecting pipe is connected with vehicle vacuumizing equipment, the tested piece is adsorbed on the surface of the tested piece through a suction hole, the tested piece is fixed, an inserting rod is inserted into the surface of the connecting pipe, a through hole is formed in the surface of the inserting rod, so that the connecting pipe is communicated with the suction hole, and a filter screen is arranged in the inserting rod; and when a screwing rod is screwed, the filtering net is driven by the screwing rod to move downwards, and when the filtering net moves to the bottom of an inserting rod, the filtering net touches a vibration rod.

The utility model relates to the technical field of test devices, and discloses a cement compressive strength test device, which solves the problems that the existing test device lacks a protective structure and is inconvenient to clean cement disintegrating slag, and comprises a support frame, and a cement placing table is fixedly arranged in the middle of the bottom end in the support frame; a protective sleeve slidably connected with the supporting frame is arranged at the top of the cement placing table, a hydraulic rod penetrates through the middle of the top end of the supporting frame, a pressing seat fixedly connected with the hydraulic rod is arranged at the top end in the supporting frame, and a control panel is fixedly arranged on one side of the supporting frame. The cement placing table is composed of a central pressure-bearing supporting seat, a square frame, four connecting seats and four flow guide covers; by means of the testing device, safety protection can be achieved, and meanwhile cement disintegrating slag can be conveniently cleaned.

The utility model relates to the technical field of sheet metal part detection, and discloses an automobile sheet metal part compressive strength test fixture which comprises a shell, a lining pipe frame is connected to the top end of the inner wall of the shell, a partition plate is connected between the outer surface of the lining pipe frame and the inner side of the shell, and a driving motor is connected to one side of the inner wall of the lining pipe frame. The output end of the driving motor is connected with a lead screw, one end of the lead screw is connected with a traction frame, a plurality of connecting rods are rotationally arranged on the outer ring of the traction frame, and the bottom end of the partition plate is connected with a plurality of sets of sliding rods. Through the arrangement of the multiple clamping mechanisms and the extrusion mechanisms, sheet metal parts in special shapes can be effectively limited and fixed, the application range is effectively widened, meanwhile, the top faces of the sheet metal parts are pressed downwards through the lower frame clamping plates, the bottom faces of the sheet metal parts are jacked upwards through the extrusion mechanisms, the fixing effect is guaranteed, the overall fixing mode of the device is automatic, and the production efficiency is improved. Operation is easy, using is convenient, manpower consumption is greatly reduced, and the using requirement is met.

This invention relates to the field of paper testing, and more particularly to a compressive strength testing device for kraft paper production. The device includes a testing platform with top frames fixed to both sides of its upper end. Support rods are fixed between the upper end of the testing platform and the top frames. A set of flattening rollers is rotatably mounted on the upper end of the top frames. Kraft paper passes through the gaps between the flattening rollers. A set of clamping plates is provided at both the upper and lower ends inside the top frames. The clamping plates are installed in clamping brackets at both ends, with the upper clamping bracket fixed to the top frame and the lower clamping bracket slidably mounted on the support rods at both ends. A pressure-applying component is provided on one side of the top frame, and a testing component is provided below the testing platform. This invention utilizes a single testing device to simultaneously perform tensile and compressive strength tests on kraft paper, achieving high testing accuracy and good testing results. Furthermore, it effectively prevents the clamping plates from loosening during testing, thereby greatly improving the clamping stability of the kraft paper and preventing it from loosening and detaching.

This invention relates to the field of cement building materials technology, specifically disclosing a method for improving the strength of silicate clinker based on mineral and crystal composition analysis. The method involves collecting 3-day and 28-day compressive strength test data of silicate clinker and quantitatively analyzing the mineral and crystal composition data using XRD. A mineral composition and strength zoning statistical method is employed to obtain appropriate C3S or C2S content to maintain a relatively good overall level of 3-day and 28-day compressive strength of the clinker. Then, a stepwise multiple linear regression analysis is used to establish the relationship between the 3-day and 28-day compressive strength of the clinker, clinker liter weight, f-CaO, the content of other chemical components, and the mineral composition and crystal content of the clinker. Specific analytical methods are used to determine optimization measures, further optimizing and improving the clinker strength. Using the above method, the 3-day and 28-day compressive strength of silicate clinker can be improved simultaneously.

The utility model discloses a concrete brick sample preparation mold, which relates to the technical field of brick sample preparation molds, and comprises a mold body, a rotating piece and a flattening assembly are rotatably connected on the mold body, the flattening assembly is arranged in the mold body, the flattening assembly comprises a shifting block rotatably connected with the mold body, a first transmission rod is fixedly connected on the shifting block, and a second transmission rod is fixedly connected on the first transmission rod. The first transmission rod is slidably connected with a sliding rod, the first transmission rod is fixedly connected with a limiting plate, the limiting plate is fixedly connected with a universal joint, the universal joint on the limiting plate is fixedly connected with a second transmission rod, the second transmission rod is slidably connected with a third transmission rod, and the third transmission rod is slidably connected with a first connecting rod. The first connecting rod is slidably connected with the roller, so that a test piece with a uniform standard is provided for subsequent compressive strength test, brick samples manufactured by different batches and different operators have an accurate and comparable foundation, and the accuracy of real quality level measurement of bricks is greatly improved.