Preparation method and system of wall column and roof beam slab concrete

Abstract

The invention belongs to the technical field of concrete preparation, and discloses a preparation method of wall column and roof beam slab concrete. According to the method, all batches of raw materials are inspected, and it is ensured that standard requirements are met; all materials are accurately metered by using metering equipment; after concrete is poured, a vibrating bar is used for ensuring that the concrete fully fills the formwork and bubbles are removed. After pouring is completed, covering with a wet jute bag and a plastic film, continuously curing for at least 7 days, strictly controlling the quality of raw materials such as cement, sand and stone, and ensuring that the raw materials meet national and industrial standards. The usage amount of the admixture and the additive should be accurate to be within an allowable error range. According to the invention, the high efficiency and quality of concrete construction are ensured, the concrete construction ingredient components aim to provide detailed guidance for the project of the Huangjin Red Lingtou black tea creative garden, the quality and performance of the concrete in the construction process are ensured to meet the design requirements, and meanwhile, environmental protection and construction site safety are also emphasized.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete preparation, and in particular relates to a method for preparing wall column and roof beam slab concrete. Background Art

[0002] Concrete is a man-made building material widely used in the fields of construction and engineering. It is made by mixing cement (usually Portland cement), water, coarse aggregate (such as crushed stone or gravel), fine aggregate (such as sand), and concrete admixtures and additives added when necessary in a certain proportion; however, the raw materials used in existing concrete are of poor quality and the preparation process is prone to pollution.

[0003] In view of the problems and defects of existing concrete technology, there are mainly the following aspects that need to be solved urgently:

[0004] 1. Raw material quality issues:

[0005] Improper selection of raw materials: The quality of the raw materials such as cement, aggregate, sand, etc. is not up to standard, or they are damaged by moisture or pollution caused by rain.

[0006] Unreasonable ratio of raw materials: The ratio of cement, aggregate, sand and water is unreasonable. Too much or insufficient ratio will lead to problems such as insufficient strength, cracks, deformation, etc.

[0007] Incorrect processing methods: Incorrect processing methods of raw materials can also lead to problems such as insufficient concrete strength, cracking, and water seepage.

[0008] 2. Pollution problems during preparation:

[0009] Noise pollution: The noise of concrete mixing plants mainly comes from the main mixer, concrete tank trucks, belt conveyors, etc. These noises will have a serious impact on the surrounding environment.

[0010] Wastewater pollution: When producing concrete, the raw materials are directly exposed to the outside. If it rains heavily, the rain will hit the ground and produce wastewater containing cement and fine sand. If it is not treated in time, it will pollute nearby water sources and the surrounding environment.

[0011] Dust pollution: Concrete mixing plants will cause dust pollution when producing concrete, mainly from the transportation and loading and unloading of sand and gravel, natural stacking, and unloading of powder tanks. These dusts not only affect the quality of the environment, but also cause harm to the health of workers. Summary of the invention

[0012] In view of the problems existing in the prior art, the present invention provides a method for preparing concrete for wall columns and roof beams.

[0013] The present invention is achieved by a method for preparing wall column and roof beam concrete, comprising the following steps:

[0014] a) Dry mix cement, sand and gravel in a concrete mixer for 2 minutes;

[0015] b) Gradually add water and admixtures and continue stirring for 35 minutes until the mixture is uniformly mixed;

[0016] c) Inspect all batches of raw materials to ensure that the quality meets construction standards;

[0017] d) After pouring the concrete, use a vibrator to ensure that the concrete fills the formwork sufficiently and removes air bubbles. After the pouring is completed, cover with wet gunny bags and plastic film and continue to cure for at least 7 days to achieve proper hardening.

[0018] Furthermore, the material ratio used is: water: cement: sand: crushed stone: admixture = 0.44:1:3.26:4.65:0.63, wherein the cement used is ordinary Portland cement 42.5R, the sand is collected from rivers, the crushed stone is 5-25 mm granite, and the admixture is polycarboxylic acid high-efficiency water reducing agent.

[0019] Furthermore, the amount of the admixture used is 0.63% of the weight of the cement, specifically a polycarboxylic acid high-efficiency water reducing agent, which can effectively reduce the water required for cement hydration, thereby improving the strength and durability of concrete.

[0020] Furthermore, the cement is ordinary Portland cement 42.5R, with an amount of 230 kg / m 3 The fineness modulus of the sand is 2.7, and the dosage is 750kg / m 3 The crushed stone is 5-25mm granite, and the dosage is 1070kg / m 3 , ensuring that the concrete has excellent workability and structural strength.

[0021] The present invention also provides component requirements in a method for preparing concrete for wall columns and roof beams and slabs, wherein the concrete components include cement, sand, crushed stone, water and admixtures, wherein the cement is ordinary Portland cement with a strength grade of 42.5R or above, the fineness modulus of the sand is between 2.5 and 3.0, the size range of the crushed stone is between 5 and 30 mm, and the type of the crushed stone is hard rock, such as granite or basalt, and the admixture is a high-efficiency water reducer, and its dosage is precisely controlled according to the weight of the cement to ensure that the strength, fluidity and durability of the concrete meet the engineering requirements.

[0022] Furthermore, components for optimizing the concrete performance of wall columns and roof beams are characterized in that mineral admixtures, such as silica fume, fly ash or slag powder, are introduced into the concrete components, and the dosage is adjusted according to specific engineering requirements to improve the crack resistance, durability and working performance of the concrete; at the same time, the mud content of the sand and the needle-like particle content of the crushed stone are strictly controlled to ensure that the quality of the concrete is stable and reliable.

[0023] Furthermore, the component configuration of the environmentally friendly wall column and roof beam slab concrete is characterized in that environmentally friendly admixtures, such as polycarboxylic acid water reducer, are used in the concrete components to reduce the impact on the environment; at the same time, renewable resources or industrial waste are preferentially selected as part of the raw materials for concrete, such as using recycled aggregate to replace part of the crushed stone, or using admixtures prepared from industrial waste slag to reduce the consumption of natural resources in concrete production.

[0024] Furthermore, the component design of high-strength wall column and roof beam and slab concrete is characterized in that high-strength cement and high-quality aggregates, such as high-strength silicate cement, high-strength crushed stone, etc. are used in the concrete components, and the water consumption per unit volume of concrete is increased to improve the cohesion and fluidity of the concrete; in addition, by precisely controlling the proportion of each component and the mixing process, the comprehensive optimization of the high strength, high durability and excellent working performance of the concrete is achieved.

[0025] The present invention also provides a high-strength concrete preparation system for wall columns and roof beams, the system comprising:

[0026] The material supply module is used to provide ordinary Portland cement with a strength grade of 42.5R as the main material, river sand with a fineness modulus of 2.7 as fine aggregate, and granite crushed stone with a size of 5 to 25 mm as coarse aggregate;

[0027] The mixing module is designed with a precise metering device for mixing cement, sand, crushed stone and water according to a predetermined mix ratio to form high-strength concrete. The module also includes a control system for accurately controlling the water-cement ratio, sand ratio and water consumption to ensure that the strength, durability and construction performance of the concrete meet the predetermined requirements;

[0028] Quality monitoring module for implementing strict quality control measures during the mixing process to ensure the uniformity and stable properties of concrete.

[0029] The system achieves the preparation of high-strength concrete through the coordinated work of the material supply module, mixing module and quality monitoring module, meeting the requirements of wall columns and roof beams for high strength, high durability and excellent construction performance, and is suitable for high-rise building structures.

[0030] The present invention also provides an environmentally friendly and energy-saving system for preparing high-strength concrete for wall columns and roof beams. The system, based on the high-strength concrete preparation system as described in system claim 1, further comprises:

[0031] 1. Environmentally friendly material selection module, which is used to select raw materials that meet environmental standards, including ordinary Portland cement, sand collected from rivers and granite gravel, and tap water as the source of water for concrete mixing;

[0032] 2. Admixture adding module, which is designed with precise metering device, is used to add polycarboxylate high-efficiency water-reducing agent as admixture during mixing, and its dosage is 0.63% of cement weight, so as to improve the fluidity and workability of concrete, reduce the resistance of concrete during pouring, reduce the generation of bubbles, and thus improve the density and strength of concrete;

[0033] 3. Optimized preparation module: This module optimizes the preparation of concrete by precisely controlling the proportion of raw materials and mixing time, thereby reducing the waste of raw materials and improving the utilization rate of concrete.

[0034] The system achieves environmentally friendly and energy-saving preparation of high-strength concrete through the coordinated work of the environmentally friendly material selection module, admixture addition module and optimized preparation module, which is in line with the development trend of green buildings.

[0035] The present invention also provides an application method of an information data processing terminal in a concrete preparation system for wall columns and roof beams, the method comprising the following steps:

[0036] 1. Receive and store relevant instructions and data on the preparation of concrete for wall columns and roof beams, including design strength grade, material ratio and dosage, mixing ratio and technical parameters;

[0037] 2. Calculate and determine the proportions of cement, sand, gravel, admixtures, additives and water according to the designed strength grade and technical parameters;

[0038] 3. Send the calculated material ratio data to the concrete mixer or other related equipment to control the amount of raw materials added and the mixing time;

[0039] 4. Real-time monitoring of various parameters in the concrete mixing process, including mixer speed, temperature, humidity, etc., and issuing alarms and taking corresponding adjustment measures when abnormal conditions are detected;

[0040] 5. Receive data from quality inspection equipment, test performance parameters of prepared concrete, and guide operators to make adjustments based on the test results;

[0041] 6. Record and store the mix ratio data, mixing parameters and quality test results of each concrete preparation for subsequent traceability and analysis.

[0042] The present invention also provides an information data processing terminal for a concrete preparation system for wall columns and roof beams. The terminal has an instruction and data receiving function, and can receive and store relevant instructions and data about concrete preparation; the terminal has a calculation function, and can calculate and determine the proportion of concrete materials according to the designed strength grade and technical parameters; the terminal has a control function, and can send the calculated material proportion data to a concrete mixer or other related equipment to control the amount of raw materials added and the mixing time; the terminal also has a real-time monitoring function, and can monitor various parameters in the concrete mixing process, and issue an alarm when an abnormal situation is found; in addition, the terminal also has a quality inspection and data recording function, and can perform performance parameter inspection on the prepared concrete, and record and store relevant preparation data for subsequent tracing and analysis.

[0043] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0044] First, the present invention strictly controls the quality of raw materials such as cement, sand, stone, etc. to ensure that they meet national and industry standards. The amount of admixtures and additives used should be accurate to within the allowable error range.

[0045] The invention ensures the high efficiency and quality of concrete construction. The concrete construction batching components of the invention are intended to provide detailed guidance for construction projects, ensure that the quality and performance of concrete during the construction process meet the design requirements, and also pay attention to environmental protection and site safety.

[0046] Second, the present invention provides a concrete preparation method aimed at optimizing the construction of wall columns and roof beams. Through this method, the following technical problems in the prior art are solved and significant technical progress is achieved:

[0047] Technical problems of existing technologies:

[0048] 1. Concrete uniformity and quality control: In the traditional concrete preparation process, the problem of uneven material mixing often occurs, resulting in unstable structural performance of concrete.

[0049] 2. Low efficiency of concrete curing: The curing process of concrete in traditional methods lacks effective control, and the hardening effect is often affected by environmental factors such as changes in temperature and humidity.

[0050] 3. Material waste and cost issues: In traditional concrete preparation, inaccurate proportions or material measurement errors often lead to resource waste and increased costs.

[0051] 4. Environmental impact: Some materials or methods used in the traditional concrete preparation process impose a burden on the environment, such as waste of water resources and improper use of admixtures.

[0052] Significant technological advances achieved:

[0053] 1. Improve the uniformity and structural performance of concrete: The present invention ensures high uniformity and excellent structural performance of concrete through precise material ratio and sufficient mixing time. In particular, the introduction of efficient mixing and quality inspection steps significantly improves the reliability of concrete.

[0054] 2. Optimize the curing method and improve the curing efficiency: By adopting the curing method of wet sacks and plastic film covering, the curing environment is effectively controlled, ensuring that the concrete hardens under suitable conditions and improving the curing efficiency.

[0055] 3. Save resources and reduce costs: The present invention reduces material waste and production costs by accurately controlling the amount and ratio of materials. In addition, the use of environmentally friendly admixtures and additives reduces the impact on the environment.

[0056] 4. Environmental friendliness and sustainability: By using polycarboxylate high-efficiency water-reducing agent and optimizing the amount of admixtures, the use of cement and water is reduced, which contributes to environmental protection and sustainable development.

[0057] The present invention not only improves the quality and durability of building structures through an innovative concrete preparation method, but also realizes a cost-effective and environmentally friendly production process, providing important technical support for the production and application of modern building materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 The present invention is a flowchart of a method for preparing concrete for wall columns and roof beams provided in an embodiment of the present invention.

[0059] Figure 2 It is a structural block diagram of a system for preparing concrete for wall columns and roof beams provided by an embodiment of the present invention.

[0060] Figure 3 It is a general plan view provided by an embodiment of the present invention.

[0061] Figure 4 It is a plan view of a structure provided by an embodiment of the present invention.

[0062] Figure 5 It is a vertical cross-sectional view of a structure provided by an embodiment of the present invention.

[0063] Figure 6 It is a second plan view of a structure provided by an embodiment of the present invention.

[0064] Figure 7 This is a second elevation view of the supporting equipment room provided in an embodiment of the present invention.

[0065] Figure 8 It is a second plan view of a structure provided by an embodiment of the present invention.

[0066] Fig. 9 It is a plan view of a corridor provided by an embodiment of the present invention.

[0067] Fig.10 This is a large-scale drawing of a wall provided by an embodiment of the present invention.

[0068] Fig.11 This is a large-scale drawing of the bathroom and doors and windows provided in an embodiment of the present invention.

[0069] Fig.12 This is the first concrete mix design report provided by the embodiment of the present invention.

[0070] Fig.13 This is the second concrete mix design report provided by the embodiment of the present invention.

[0071] Fig.14 This is the third concrete mix design report provided by the embodiment of the present invention. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0073] like Figure 1 As shown, a method for preparing wall column and roof beam concrete provided by an embodiment of the present invention comprises the following steps:

[0074] Step 1: Dry mix cement, sand and gravel in a concrete mixer for 2 minutes;

[0075] Step 2: gradually add water and admixtures and continue stirring for 35 minutes until the mixture is evenly mixed;

[0076] Step 3: Inspect all batches of raw materials;

[0077] Step 4. After pouring the concrete, use a vibrating rod to ensure that the concrete fully fills the formwork and removes air bubbles; after pouring, cover with wet sacks and plastic film and continue to cure for at least 7 days.

[0078] The following is a detailed solution for the high-strength concrete preparation method for wall columns and roof beams:

[0079] 1. Material preparation

[0080] 1. Cement: Ordinary Portland cement with a strength grade of 42.5R is selected as the main material. This type of cement has the characteristics of high early strength, good durability, and strong crack resistance, and is very suitable for the preparation of high-strength concrete.

[0081] 2. Fine aggregate: Use sand collected from rivers with a fineness modulus of 2.7. The particle size and fineness modulus of this sand have been carefully selected, and it has good performance with cement, which can effectively improve the strength and durability of concrete.

[0082] 3. Coarse aggregate: Use granite crushed stone with a size of 5 to 25 mm. This kind of crushed stone has the advantages of high strength, good shape, no soil and other impurities, and can ensure the density and strength of concrete.

[0083] 4. Water: Use clean, impurity-free tap water or groundwater. The quality of water has an important impact on the strength, fluidity and durability of concrete.

[0084] 2. Mix ratio design

[0085] According to the specific engineering requirements and test results, the mix design of high-strength concrete is carried out. In the design process, the influence of factors such as water-cement ratio, sand ratio, and water consumption on the performance of concrete should be fully considered. Generally speaking, the smaller the water-cement ratio, the higher the strength of the concrete, but it will also reduce the fluidity and workability of the concrete. Therefore, when determining the water-cement ratio, the workability and fluidity of the concrete should also be considered.

[0086] 3. Mixing process

[0087] 1. Measurement: According to the designed mix ratio, accurately measure the amount of various materials. Ensure that the mix ratio of each batch of concrete is stable to ensure the uniformity of concrete quality.

[0088] 2. Mixing: Put cement, sand, gravel and water into the concrete mixer and mix them thoroughly. The mixing time and speed should be controlled during the mixing process to avoid affecting the strength and uniformity of the concrete.

[0089] 3. Quality control: During the mixing process, the quality of concrete should be monitored in real time. By checking the slump, workability and other indicators of concrete, ensure that the performance of concrete meets the requirements.

[0090] 4. Pouring and curing

[0091] 1. Pouring: Pour the mixed concrete from the mixer and pour it. During the pouring process, attention should be paid to the fluidity and uniformity of the concrete to avoid problems such as hollowing and inclusions.

[0092] 2. Curing: After the concrete is poured, proper curing should be carried out. By controlling the curing temperature, humidity and other conditions, the hardening and strength development of the concrete can be promoted.

[0093] Through the above detailed scheme, it can be ensured that the performance and quality of high-strength concrete meet the predetermined requirements and meet the high standard requirements of high-rise buildings for concrete materials. At the same time, in the actual construction process, adjustments and optimizations should be made according to specific conditions to ensure smooth construction.

[0094] The water:cement:sand:gravel:admixture provided in the embodiment of the present invention=0.44:1:3.26:4.65:0.63.

[0095] The cement provided by the embodiment of the present invention:

[0096] Type: Ordinary Portland Cement;

[0097] Strength level: 42.5R;

[0098] Dosage: 230kg / m 3 .

[0099] The sand provided by the embodiment of the present invention is:

[0100] Source: collected from rivers;

[0101] Fineness modulus: 2.7;

[0102] Dosage: 750kg / m 3 .

[0103] The crushed stone provided by the embodiment of the present invention:

[0104] Size range: 5~25mm;

[0105] Type: Granite;

[0106] Dosage: 1070kg / m 3 .

[0107] The additive provided by the embodiment of the present invention is:

[0108] Name: Polycarboxylate high efficiency water reducer;

[0109] Dosage: 0.63% of cement weight;

[0110] The water:

[0111] Source: tap water;

[0112] Dosage: 165kg / m 3 .

[0113] like Figure 2As shown, a system for preparing wall column and roof beam concrete provided by an embodiment of the present invention comprises:

[0114] A mixing module for dry mixing cement, sand and gravel in a concrete mixer for 2 minutes;

[0115] A mixing module is used to gradually add water and admixtures and continue stirring for 35 minutes until the mixture is uniform;

[0116] Inspection module, used to inspect all batches of raw materials;

[0117] Casting module: After the concrete is poured, use a vibrating rod to ensure that the concrete fully fills the formwork and eliminates air bubbles; after pouring, cover with wet sacks and plastic film and continue to cure for at least 7 days.

[0118] The detailed working principle of the information data processing terminal provided by the embodiment of the present invention is as follows:

[0119] First, the information data processing terminal, as a core processing unit, receives and executes instructions and data related to the concrete mixing system for wall columns and roof beams. Its working principle covers the entire process from data input, processing to output, ensuring the accuracy and efficiency of the concrete mixing process.

[0120] 1. Data input and storage:

[0121] The terminal first receives relevant data about concrete preparation, including design strength grade, material ratio and dosage, mixing ratio, technical parameters, etc. These data can be manually input or automatically obtained through docking with other systems (such as ERP, SCM, etc.). After the data is input, the terminal will verify and store it to ensure the accuracy and completeness of the data.

[0122] 2. Data processing and analysis:

[0123] Based on the stored data, the terminal performs a series of processing and analysis. It calculates the required material ratio and amount according to the designed strength grade and technical parameters. At the same time, the terminal also analyzes the rationality of the data, such as checking whether the type and quality of the materials meet the requirements, and whether the mixing ratio meets the performance requirements of the concrete.

[0124] 3. Instruction generation and output:

[0125] Based on the results of processing and analysis, the terminal generates corresponding instructions and data and outputs them to other components of the concrete mixing system. These instructions include controlling the concrete mixer to mix according to the specified ratio and amount, controlling the conveying equipment to transport the raw materials to the specified location, and controlling the testing equipment to test the quality of the prepared concrete.

[0126] 4. Real-time monitoring and feedback:

[0127] During the concrete mixing process, the terminal will continuously receive real-time data from various devices and sensors, such as the operating status of the mixer, the amount of raw materials used, the slump of concrete, etc. Through real-time monitoring of these data, the terminal can promptly detect and handle abnormal situations, such as insufficient raw materials, too long mixing time, etc. At the same time, the terminal will also feed back real-time data and processing results to operators or related systems for further adjustment and optimization.

[0128] 5. Data storage and query:

[0129] All processed data and results will be stored by the terminal in a local or cloud database for subsequent query and analysis. Operators or related systems can easily view historical data, preparation records, quality reports, etc. through the terminal, thereby achieving comprehensive traceability and management of the concrete preparation process.

[0130] The information data processing terminal provided in the embodiment of the present invention realizes precise control and management of the concrete mixing system for wall columns and roof beams and slabs through a series of work processes such as data input, processing, instruction generation and output, real-time monitoring and feedback, and data storage and query, thereby improving the quality and efficiency of concrete mixing.

[0131] The present invention provides a concrete preparation method, which is specially used for the construction of wall columns and roof beams and slabs, ensuring the strength and durability of the structure. The following is a detailed implementation scheme of the method:

[0132] Material ratio and dosage:

[0133] 1. Cement:

[0134] Variety: Kaiyujiao PO 42.5R produced by Huizhou Everbright Cement Enterprise Co., Ltd.

[0135] Dosage: 230kg / m 3 .

[0136] 2. Sand (fine aggregate):

[0137] Fineness modulus: 2.7.

[0138] Dosage: 750kg / m 3 .

[0139] 3. Crushed stone (coarse aggregate):

[0140] Size range: 5~25mm.

[0141] Rock type: Granite.

[0142] Dosage: 1070kg / m3 .

[0143] 4. Admixture:

[0144] Fly ash: Grade II, usage ratio is 1.9%.

[0145] Mineral powder: The dosage ratio is 6.95%.

[0146] 5. Additives:

[0147] Name: Polycarboxylate high efficiency water reducer.

[0148] Dosage: Calculated as a percentage of the total amount of cementitious materials.

[0149] 6. Water:

[0150] Source: tap water.

[0151] Dosage: 165kg / m 3 .

[0152] Mixing ratio:

[0153] The ratio is set to water: cement: sand: stone: admixture = 0.44: 1: 3.26: 4.65: 0.63.

[0154] Technical parameters:

[0155] Slump: 150±30mm.

[0156] Design strength grade: C35P6.

[0157] Compressive strength: 30MPa in 7 days and 44.8MPa in 28 days.

[0158] Hybrid Approach:

[0159] All materials should be dry mixed in a concrete mixer for 2 minutes to ensure that the dry materials are fully mixed.

[0160] Water and admixtures were gradually added and stirring was continued for 35 minutes to ensure homogeneity of the mixture.

[0161] Construction precautions:

[0162] Make sure all materials are measured accurately in the specified proportions.

[0163] After pouring the concrete, a vibrator should be used to ensure that the concrete is dense and to remove air bubbles.

[0164] After pouring is completed, it should be covered with wet sacks and plastic film and kept wet for at least 7 days.

[0165] Quality Control:

[0166] Strictly control the quality of raw materials such as cement, sand, and gravel to ensure that they meet national and industry standards.

[0167] Control the amount of admixtures and additives used to ensure that they are within the allowable error range.

[0168] Through the above embodiments, the present invention ensures the high efficiency and quality of concrete for wall columns and roof beams, and optimizes the structural safety and durability of the building. In order to ensure the high efficiency and quality of concrete construction, a construction scheme for the ingredients of concrete construction is described in detail below. This includes specific material selection, proportion, dosage and processing steps.

[0169] The detailed concrete mix ratio and technical parameters provided by the present invention are as follows:

[0170] Step 1: Material preparation and mixing

[0171] 1. Material selection and quantification:

[0172] Cement: PO 42.5R produced by Huizhou Everbright Cement Enterprise Co., Ltd. is used, with a dosage of 230kg / m 3 This cement type is suitable for structures requiring higher strength and durability.

[0173] Sand (fine aggregate): Use sand with a fineness modulus of 2.7 and a dosage of 750 kg / m 3 to ensure adequate bonding and filling and enhance the overall compactness of the concrete.

[0174] Crushed stone (coarse aggregate): 5-25 mm granite, dosage is 1070 kg / m 3 The hardness and wear resistance of granite have an important influence on improving the strength and durability of concrete.

[0175] Admixtures: include fly ash and mineral powder, added in the proportion of 1.9% and 6.95% respectively, to improve the workability and later strength of concrete.

[0176] Admixture: The use of polycarboxylic acid high-efficiency water-reducing agent can reduce the amount of cement and improve the fluidity and density of concrete.

[0177] Water: Use tap water, the dosage is 165kg / m 3 , the amount of water is controlled within a precise range to ensure the slump and workability of the concrete.

[0178] 2. Mixing process:

[0179] Dry mix cement, sand and gravel in that order for 2 minutes to ensure that the dry materials are fully mixed.

[0180] Gradually add water and admixtures and continue stirring for 35 minutes to ensure that all materials are evenly incorporated.

[0181] Step 2: Quality Control

[0182] Raw Materials Inspection: All raw materials are quality inspected before mixing to ensure that they meet the specified standards.

[0183] Mixture testing: Concrete is tested several times during and after mixing, such as slump test to ensure that the designed slump of 150±30mm is achieved, and subsequent compressive strength test.

[0184] Step 3: Casting and curing

[0185] Pouring: Pour the mixed concrete into the formwork and compact it with a vibrating rod to ensure that there are no bubbles in the concrete and that it is highly dense.

[0186] Curing: Immediately after pouring, cover with wet sacks and plastic film to maintain a moist state and cure for at least 7 days. This is a key step to ensure that the concrete reaches initial strength and prevent surface cracking.

[0187] Step 4: Performance Evaluation

[0188] Strength test: The cured concrete is subjected to compressive strength test, and its strength is measured at 7 days and 28 days to verify whether it meets the design requirements of 30MPa at 7 days and 44.8MPa at 28 days.

[0189] Through this series of detailed steps and strict material ratio control, the present invention can ensure the structural safety and durability of wall column and roof beam slab concrete in the building, while optimizing the construction process and improving the building quality through an efficient concrete mixing method.

[0190] The following are four specific application examples based on the provided concrete mixing method:

[0191] Example 1: Residential Building Construction

[0192] In a residential construction project, engineers used the provided concrete mixing method to build the wall columns and roof beams. The engineering team mixed the raw materials according to step one to ensure that all materials were evenly mixed, and then continued to mix according to step two to achieve the best mixing effect. Through the curing procedure in step four, it was ensured that the concrete structure achieved sufficient hardness and durability during the curing period, thereby improving the structural safety and life of the entire building.

[0193] Example 2: Commercial Center Construction

[0194] In the construction projects of commercial centers, there is a particular need to install heavy load-bearing wall columns and beams in the basement. Using the method of the present invention, the construction team can ensure that these key structural parts have sufficient strength and stability. Especially in the high-traffic areas of commercial centers, the durability of the concrete structure is crucial to the functionality and safety of the entire building.

[0195] Example 3: Municipal Road and Bridge Construction

[0196] In municipal engineering, the construction of bridges and roads often requires high-performance concrete to withstand long-term traffic loads. By using the concrete preparation method of the present invention, engineers can ensure that the pillars of the bridges and the foundation layers of the roads not only show high structural integrity during construction, but also maintain this performance during the use process for decades to come.

[0197] Example 4: Earthquake-resistant building construction

[0198] In earthquake-prone areas, the construction of earthquake-resistant buildings requires special attention to the quality and maintenance of concrete. The concrete preparation method of the present invention ensures high-quality raw material mixing and adequate maintenance, so that the building can provide better safety protection when an earthquake occurs. In addition, through the vibrating rod process in step 4 and subsequent maintenance, the bubbles in the concrete are removed, further enhancing the earthquake resistance of the structure.

[0199] These embodiments demonstrate the wide applicability and effectiveness of the concrete preparation method of the present invention in various construction and engineering projects, and highlight its advantages in ensuring structural safety, stability and long-term durability.

[0200] Fig.12 This is the first concrete mix design report provided by the embodiment of the present invention.

[0201] Fig.13 This is the second concrete mix design report provided by the embodiment of the present invention.

[0202] Fig.14 This is the third concrete mix design report provided by the embodiment of the present invention.

[0203] Project name: An international business center

[0204] 1. Project Background

[0205] An international business center is a high-rise building that integrates office, business, conference and other functions. It is located in the core area of ​​the city and has extremely high requirements for the strength, durability and construction performance of concrete materials. To ensure the stability and safety of the building structure, the project team decided to use a specially formulated high-strength concrete as the main material for wall columns and roof beams.

[0206] 2. Preparation method of high-strength concrete

[0207] 1. Material selection:

[0208] Cement: Ordinary Portland cement with strength grade 42.5R is selected. This cement has high early strength and good durability, and can meet the high standards of concrete materials required for high-rise buildings.

[0209] Fine aggregate: Use river sand with a fineness modulus of 2.7. This sand has a moderate particle distribution and low mud content, which helps to improve the density and strength of concrete.

[0210] Coarse aggregate: Use granite crushed stone with a size of 5 to 25 mm. This crushed stone is hard, wear-resistant, and has high compressive strength, which can increase the compressive strength and durability of concrete.

[0211] 2. Mix ratio design:

[0212] Design the appropriate mix ratio according to the specific requirements of the project. Generally speaking, high-strength concrete has a low water-cement ratio, a moderate sand ratio, and the amount of water needs to be precisely controlled. In this project, after many tests and optimizations, the following mix ratio was finally determined: cement: sand: crushed stone: water = 1:1.5:2.5:0.4.

[0213] 3. Mixing and construction:

[0214] During the mixing process, ensure that all materials are fully mixed and uniform to avoid segregation and stratification. At the same time, strictly control the mixing time and mixing speed to ensure the uniformity and stable performance of the concrete.

[0215] During the construction process, efficient transportation methods such as pumping or lifting are used to ensure that the concrete can be delivered to the pouring location in a timely and accurate manner. During the pouring process, layered pouring, vibration compaction and other methods are used to ensure the density and uniformity of the concrete.

[0216] 4.Quality Control:

[0217] Strict quality control measures are implemented during the mixing process, such as checking material quality, weighing accuracy, mixing time, etc. At the same time, concrete is sampled and tested, including compressive strength, impermeability, durability and other indicators to ensure that the performance of the concrete meets the design requirements.

[0218] 3. Implementation Effect

[0219] After adopting the above high-strength concrete preparation method, the wall columns and roof beams of an international business center project have reached the predetermined strength, durability and construction performance requirements. After long-term use and monitoring, no obvious quality problems such as cracking and leakage were found. This high-strength concrete not only meets the high-standard requirements of high-rise buildings for materials, but also improves the stability and safety of the building structure. At the same time, its excellent construction performance also shortens the construction period and reduces the project cost.

[0220] Project name: A green ecological office building

[0221] 1. Project Background

[0222] A green ecological office building is a landmark building that pursues environmental protection, energy saving and green architecture. In the construction of wall columns and roof beams, this project adopted a high-strength concrete preparation method, with special emphasis on construction quality, environmental protection, energy saving and optimal use of raw materials.

[0223] 2. Preparation method of high-strength concrete

[0224] 1. Optimization of construction quality:

[0225] During the concrete mixing process, the project team selected polycarboxylate high-efficiency water-reducing agent as an admixture, and its dosage was precisely controlled at 0.63% of the cement weight. This admixture can effectively reduce the water-cement ratio of concrete, improve the fluidity and working performance of concrete, and thus ensure the construction quality of wall columns and roof beams.

[0226] 2. Environmentally friendly and energy-saving preparation method:

[0227] The project team insisted on using tap water as the source of water for concrete mixing, which not only ensured the safety of water quality but also reduced pollution to the environment.

[0228] In the selection of raw materials, the team strictly followed environmental protection standards and selected ordinary Portland cement (strength grade 42.5R and above), sand collected from rivers (fineness modulus between 2.5 and 3.0), and hard rock (granite or basalt with a size range of 5 to 30 mm) as aggregates. These raw materials all meet environmental protection requirements and have good physical properties.

[0229] By precisely controlling the proportion of raw materials and mixing time, the project team achieved the optimal preparation of concrete, reduced the waste of raw materials, and improved the utilization rate of concrete. This preparation method not only conforms to the development trend of green buildings, but also brings significant economic benefits to the company.

[0230] 3. Specific parameters of concrete components:

[0231] Cement: Ordinary Portland cement is used, with a strength grade of 42.5R or above.

[0232] Sand: River sand with fineness modulus between 2.5 and 3.0.

[0233] Crushed stone: Granite or basalt ranging in size from 5 to 30 mm.

[0234] Admixture: Polycarboxylic acid high-efficiency water-reducing agent, the dosage of which is precisely controlled to 0.63% according to the weight of cement.

[0235] 3. Implementation Effect

[0236] In a green ecological office building project, the construction quality of wall columns and roof beams and slabs was significantly improved after adopting the above high-strength concrete preparation method. The uniformity, density and strength of the concrete all met the predetermined requirements. At the same time, due to the adoption of an environmentally friendly and energy-saving preparation method, the project reduced environmental pollution during the construction process and achieved the goal of green construction. In addition, the optimized preparation method also reduced the waste of raw materials and improved the utilization rate of concrete, bringing both economic and social benefits to the enterprise.

[0237] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A method for preparing high-strength concrete for wall columns and roof beams, characterized in that: The method comprises the following steps: Ordinary Portland cement with a strength grade of 42.5R is used as the main material; river sand with a fineness modulus of 2.7 is used as fine aggregate; granite crushed stone with a size of 5 to 25 mm is used as coarse aggregate; cement, sand, crushed stone and water are mixed and stirred according to the predetermined mix ratio to form high-strength concrete; among them, by accurately controlling the water-cement ratio, sand ratio and water consumption, the strength, durability and construction performance of the concrete are ensured to meet the predetermined requirements, so as to meet the high standard requirements of high-rise buildings for concrete materials; Ordinary Portland cement with a strength grade of 42.5R is used as the main material; sand with a fineness modulus of 2.7 collected from rivers and granite crushed stones with a size of 5 to 25 mm are used as aggregates; the above materials are mixed with water according to the mix ratio and fully stirred; at the same time, strict quality control measures are implemented during the mixing process to ensure the uniformity and stable performance of the concrete; the final concrete meets the requirements of high strength, high durability and excellent construction performance for wall columns and roof beams and slabs, and is therefore suitable for high-rise building structures.

2. The method for preparing high-strength concrete according to claim 1, characterized in that: A preparation method for optimizing the construction quality of wall column and roof beam concrete is adopted, characterized in that, in the concrete mixing process, a polycarboxylic acid high-efficiency water reducing agent is used as an admixture, and its dosage is 0.63% of the weight of cement.

3. The method for preparing high-strength concrete according to claim 1, characterized in that: An environmentally friendly and energy-saving method for optimizing the preparation of concrete for wall columns and roof beams is adopted, which is characterized in that tap water is used as the water source for concrete mixing, and raw materials that meet environmental protection standards are selected, such as ordinary Portland cement, sand collected from rivers, and granite gravel, which reduces pollution to the environment; in addition, the method achieves optimized preparation of concrete by accurately controlling the proportion of raw materials and mixing time, reduces waste of raw materials, improves the utilization rate of concrete, and conforms to the development trend of green buildings.

4. The method for preparing high-strength concrete according to claim 1, characterized in that: The components of concrete include cement, sand, crushed stone, water and admixtures, wherein the cement is ordinary Portland cement with a strength grade of 42.5R or above, the fineness modulus of sand is between 2.5 and 3.0, the size of the crushed stone is between 5 and 30 mm, and the type of the crushed stone is hard rock, such as granite or basalt, and the admixture is a high-efficiency water reducing agent, and its dosage is precisely controlled according to the weight of the cement.

5. The method for preparing high-strength concrete according to claim 1, characterized in that: Mineral admixtures are introduced into the concrete components, such as silica fume, fly ash or slag powder, and their dosage is adjusted according to specific project requirements to improve the crack resistance, durability and working performance of the concrete; at the same time, the mud content of the sand and the needle-like particle content of the gravel are strictly controlled to ensure the stable and reliable quality of the concrete.

6. The method for preparing high-strength concrete according to claim 5, characterized in that: Environmentally friendly wall columns and roof beams are made of concrete components that use environmentally friendly admixtures and polycarboxylate water reducers to reduce the impact on the environment. Renewable resources or industrial waste are given priority as part of the raw materials for concrete, and recycled aggregates are used to replace part of the crushed stone, or admixtures prepared from industrial waste residues are used to reduce the consumption of natural resources in concrete production.

7. The method for preparing high-strength concrete according to claim 5, characterized in that: The component design of high-strength wall column and roof beam and slab concrete is characterized in that high-strength cement and high-quality aggregates, such as high-strength silicate cement and high-strength crushed stone, are used in the concrete components, and the water consumption per unit volume of concrete is increased to improve the cohesion and fluidity of the concrete; in addition, the comprehensive optimization of high strength, high durability and excellent working performance of the concrete is achieved by precisely controlling the proportion of each component and the mixing process.

8. A high-strength concrete preparation system for wall columns and roof beams, characterized in that: The system includes: The material supply module is used to provide ordinary Portland cement with a strength grade of 42.5R as the main material, river sand with a fineness modulus of 2.7 as fine aggregate, and granite crushed stone with a size of 5 to 25 mm as coarse aggregate; The mixing module is designed with a precise metering device for mixing cement, sand, crushed stone and water according to a predetermined mix ratio to form high-strength concrete. The module also includes a control system for accurately controlling the water-cement ratio, sand ratio and water consumption to ensure that the strength, durability and construction performance of the concrete meet the predetermined requirements; Quality monitoring module for implementing strict quality control measures during the mixing process to ensure the uniformity and stable properties of concrete. The system achieves the preparation of high-strength concrete through the coordinated work of the material supply module, mixing module and quality monitoring module, meeting the requirements of wall columns and roof beams for high strength, high durability and excellent construction performance, and is suitable for high-rise building structures.

9. An environmentally friendly and energy-saving system for preparing high-strength concrete for wall columns and roof beams, characterized in that: The system is based on the high-strength concrete preparation system as described in system claim 1, and further comprises: Environmentally friendly material selection module, which is used to select raw materials that meet environmental standards, including ordinary Portland cement, sand collected from rivers and granite gravel, and tap water as the source of water for concrete mixing; Admixture adding module, which is designed with precise metering device, is used to add polycarboxylate high-efficiency water-reducing agent as admixture during mixing, and its dosage is 0.63% of cement weight, so as to improve the fluidity and workability of concrete, reduce the resistance of concrete during pouring, reduce the generation of bubbles, and thus improve the density and strength of concrete; Optimized preparation module: This module optimizes the preparation of concrete by precisely controlling the proportion of raw materials and mixing time, thereby reducing the waste of raw materials and improving the utilization rate of concrete. The system achieves environmentally friendly and energy-saving preparation of high-strength concrete through the coordinated work of the environmentally friendly material selection module, admixture addition module and optimized preparation module, which is in line with the development trend of green buildings.

10. An information data processing terminal, used in a concrete preparation system for wall columns and roof beams, characterized in that: The terminal has the function of receiving instructions and data, and can receive and store relevant instructions and data on concrete preparation; The terminal has a calculation function, which can calculate and determine the proportion of concrete materials according to the designed strength grade and technical parameters; The terminal has a control function and can send the calculated material ratio data to the concrete mixer or other related equipment to control the amount of raw materials added and the mixing time; The terminal also has a real-time monitoring function that can monitor various parameters during the concrete mixing process and issue an alarm if an abnormal situation is found; In addition, the terminal also has quality inspection and data recording functions, which can test the performance parameters of the prepared concrete and record and store the relevant preparation data for subsequent traceability and analysis.

Images