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Construction technology of mass concrete The pouring amount of large volume is too large, and the overall requirements are high. During the pouring, tamping and curing process, a large amount of hydration heat is generated from cement hydration. However, due to its large volume, a large amount of hydration heat cannot be distributed. The internal temperature of the concrete is higher than the temperature of the outer concrete, resulting in a large temperature difference. Due to the different volume expansion between the surface and the inside, temperature cracks will be generated, so the hydration heat is reduced, Place the concrete inside and outside -
Construction technology of mass concrete With the rapid development of building construction technology, modern buildings often involve mass concrete construction, such as high-rise building foundation, large equipment foundation, water conservancy dam, etc. Its main characteristics are large volume, small surface, concentrated cement hydration heat release, and rapid internal temperature rise -
Construction technology of mass pumped concrete Construction technology of mass pumped concrete -
Construction technology standard of mass concrete This is the construction process standard of mass concrete. This process standard is applicable to the construction of super thick mass concrete structures such as large equipment foundations in industrial and civil buildings, and box baseplates in high-rise buildings. -
Construction technology and crack control of mass concrete With the rapid development of building construction technology, modern buildings often involve mass concrete construction, such as high-rise building foundation, large equipment foundation, water conservancy dam, etc. Its main characteristics are large volume, small surface, concentrated cement hydration heat release, and rapid internal temperature rise. When the temperature difference between the inside and outside of the concrete is large, temperature cracks will occur, affecting the safety and normal use of the structure, so it is necessary to -
Construction technology of mass concrete for common base plate This data is about the construction process of mass concrete for ordinary baseplate. I, process characteristics II, operating conditions III, construction process IV, quality standards -
Construction technology of mass concrete pile cap For mass concrete pile cap, the formwork construction is difficult, the one-time pouring concrete volume is large, and there is no structural crack, which can achieve the purpose of improving work efficiency, accelerating construction progress, ensuring project quality, and improving economic benefits. -
Construction process standard for mass concrete of bottom slab The construction technology standard for mass concrete of bottom slab is rich and detailed, and can be downloaded for reference and study by netizens. -
Construction technology of 8.3m thick mass concrete This process is the construction of 8.3m thick mass concrete for the pulverizer foundation, including the pouring sequence and method of mass concrete, calculation of the temperature in the concrete center, concrete cooling, temperature measurement, etc -
Temperature control measures and construction technology of mass concrete project This document is about the temperature control measures and construction process of mass concrete engineering, including: content introduction: mass concrete with the minimum geometric size of concrete structure not less than 1m, or concrete that is expected to cause harmful cracks due to temperature changes and shrinkage caused by the hydration of cementitious materials in concrete, called mass concrete. Mass concrete and ordinary concrete -
Construction process standard for mass concrete pouring engineering 7 Quality control 7.1 Cement must be provided with factory certificate and test report, and its variety, mark and date of delivery shall be checked and accepted, and retest shall be carried out according to regulations, and it can be used only after passing the retest; The quality of admixtures must meet the requirements of national standards; The selection of concrete aggregate must be consistent with the batching list and the specifications. The mix proportion and raw material measurement of concrete -
Mass Concrete Construction Technology and Quality Control.pdf Mass concrete construction technology and quality control.pdf, which is detailed and rich, can be downloaded by netizens. -
Full light concrete construction technology training PPT Performance characteristics of full lightweight concrete: 1) The strength grade of hardened full lightweight concrete is determined according to the standard value of cube compressive strength. 2) The strength grade of all lightweight concrete used in building ground insulation engineering can be divided into: LC5.0; LC7.5; LC10; LC15. 3) The full light concrete used in building ground insulation engineering can be divided according to its dry apparent density -
Mass concrete construction training handout PPT Mass concrete generally refers to cast-in-place concrete whose volume is so large that measures must be taken to deal with the temperature difference caused by hydration heat, reasonably solve the stress caused by temperature difference deformation, and control the generation of cracks or limit the development of cracks. The definition of mass concrete given in the Code for Construction of Mass Concrete (GB 50496-2009): the minimum size of concrete structure -
Technical standard for winter construction of foundation mass concrete works The plane size and thickness of the foundation slab of the project are large, and the construction is in winter. The problems of temperature stress and temperature control should be seriously treated to prevent temperature cracks caused by excessive hydration heat of concrete. Full preparation should be made from the aspects of technology, materials and other related links -
Optimization design of mass concrete mix proportion and construction technology research.pdf Mass concrete mix proportion optimization design and construction technology research. pdf, which is detailed and rich, can be downloaded by netizens. -
Analysis of mass concrete construction [Abstract] In recent years, with the continuous improvement of China's economic strength and the increasing investment in infrastructure, the number of large and super large projects and the number of mass concrete projects are increasing -
Mass concrete construction and measures Abstract: This paper briefly introduces the characteristics of building mass concrete and the achievements made in the research of mass concrete engineering, introduces the causes of cracks in mass concrete structure, and comprehensively solves them in four aspects of materials, construction, design, and maintenance, and puts forward the general methods for preventing and reducing concrete cracks and several problems that should be paid attention to in construction -
Talking about the construction of mass concrete The baseplate of the basement of high-rise buildings is generally thick, some up to 2-3 m thick, which belongs to mass concrete construction. The main reasons for cracks are high hydration heat, large temperature difference with the ambient temperature, or improper maintenance. Serious cracks can lead to leakage of the bottom plate. If the concrete temperature is high, sudden pouring cold water for maintenance will also produce irregular multiple microcracks -
Mass concrete construction plan As a supervisor, I often encounter mass concrete construction in my work. In mass concrete construction, temperature cracks are common, especially in summer. Once this problem appears, it often affects the progress of the project. If it is not handled well, it will often leave a certain quality hidden danger to the project. Since the current design and construction specifications -
Mass concrete construction supervision Taking the actual project as an example, this paper expounds the key points and control methods of construction supervision of mass concrete in civil buildings in detail. -
Mass concrete construction of a bridge Content introduction The section size of 1 # and 2 # cushion caps of a main bridge is 8m × 8m, the thickness is 3m, and the amount of concrete poured at a time is 192m3, which belongs to mass concrete structure. Considering that during the mass concrete construction of the cushion cap, the internal temperature of the concrete will rise due to the hydration heat of cement, plus internal and external constraints, which will produce temperature stress. In addition, the concrete is easy to produce temperature stress during the hardening process -
Construction design of mass concrete (1) Cement: considering the high hydration heat of ordinary cement, especially when it is applied to mass concrete, a large amount of cement hydration heat is not easy to emit, and the internal temperature of the concrete is too high, resulting in a large temperature difference with the concrete surface, which will generate compressive stress inside the concrete and tensile stress on the surface. When the surface tensile stress exceeds the tensile strength of early concrete, temperature cracks will occur, so -
Mass concrete construction method Content introduction II. Construction method characteristics 1. Simple construction, clear and easy to understand process procedures, and easy to master by construction personnel; 2. The construction process is easy to control and the construction quality is easy to guarantee; 3. The cracks in mass concrete construction are effectively prevented; 3、 Scope of application This method is applicable to the construction of mass concrete, especially for the construction of mass bearing platform and pier shaft concrete -
Mass Concrete Construction Thesis Mass Concrete Construction Thesis. doc, which is detailed and rich, and can be downloaded by netizens. -
Technical standard for construction technology of thin layer pouring of mass concrete Technical requirements for concrete construction: R60, C20 concrete, cement consumption not more than 260kg/m3, strength assurance rate of 90%, and ultimate tensile value not less than 0.85 × 10-4 -
Talking about the Construction Technology of High rise Building Mass Concrete Engineering With the continuous development of the current society, concrete is widely used in various building structural forms. In the current various construction methods, concrete is indispensable. As the main structural form of current building construction, high-rise buildings have increasingly higher requirements for construction control in the process of construction. In the whole building system architecture, concrete plays a vital role. -
Mass concrete construction of pier and abutment Bridge pier and abutment construction and technical specifications, concrete curing and pouring -
Construction Paper of Mass High Strength Concrete Proper selection of high efficiency water reducing agent and air entraining agent plays an extremely important role in reducing the unit water consumption and cementitious material consumption of mass concrete, improving the workability of fresh concrete, and improving the mechanical, thermal, deformation, durability and other properties of hardened concrete. -
Block Diagram of Shotcrete Construction Process Block Diagram of Shotcrete Construction Process -
Mass concrete construction scheme 5000m3, 2m thick mass concrete construction -
Construction technology of precast concrete pile Construction technology of precast concrete pile -
Construction process standard of concrete cushion According to the standard Unified Standard for Construction Quality Acceptance of Building Engineering (GB50300-2001) Code for Acceptance of Construction Quality of Building Ground Engineering (GB50209-2002), this process standard is applicable to the construction operation of concrete cushion for industrial and civil building ground. 2. Construction preparation 2.1 Materials and main machines and tools: -
Winter construction of mass concrete foundation This paper introduces the winter construction methods and measures of mass concrete for the foundation slab of Tianjin Yitong Mansion -
Construction technology of precast concrete box girder Discussion on construction technology of precast concrete box girder -
Construction process standard of fair faced concrete As cast finish concrete is a kind of concrete project that directly uses the natural texture of concrete after molding as the finishing effect, and does not do other external decoration.
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one Mass concrete technical disclosure -
two Specification for highway mass concrete -
three Code for mass concrete construction in winter -
four Mass concrete construction scheme -
five Mass concrete construction scheme -
six Specification for mass concrete -
seven Mass concrete construction scheme -
eight Construction scheme of mass concrete