High-ductility cement based composite material
A technology of composite materials and active mixed materials, applied in the field of high-ductility cement-based composite materials, can solve the problems of energy consumption and environmental pollution, restricting the application, restricting the sustainable development of natural resources, and occupying land.
Active Publication Date: 2014-12-31
广西中建西部建设有限公司
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Problems solved by technology
However, all kinds of composite materials for construction currently developed use traditional general-purpose Portland cement as the matrix, and its huge energy consumption and environmental pollution greatly limit the application of this type of material in green projects such as environmental friendliness; in addition, There are a large number of industrial waste residues including phosphorus slag, slag, fly ash, etc. and a large amount of industrial waste gypsum such as desulfurization gypsum, phosphogypsum, fluorine gypsum, etc. The utilization rate is extremely low, occupying land, wasting resources, and causing serious pollution to the surrounding environment , restricting the sustainable development of my country's natural resources and environmental protection
Method used
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Embodiment 1～6
[0033] Table 1 is the formula of the present invention; Table 2 is the specific implementation formula of the present invention, and Table 3 is the used specific material characteristics of specific examples.
[0034] Table 1 High ductility cement-based composite material formula (parts by weight: parts)
[0035]
[0036] Table 2 Formulas of specific examples of high ductility cement-based composite materials (parts by weight: parts)
[0037]
[0038] Table 3 Specific materials used in specific examples of high ductility cement-based composite materials
[0039]
[0040]
preparation Embodiment 1~6
[0042] A. Mix ultra-fine sand and special cement according to the corresponding weight ratio, then add water and water reducer in the corresponding weight ratio, mix and stir evenly;
[0043] B. Add the mixture obtained in step A to the fiber of corresponding weight.
[0044] C. After the mixture obtained in step B is hydrated and hardened, demoulding is carried out to obtain various examples 1-6.
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Abstract
The invention discloses a building composite material, and particularly relates to a high-ductility cement based composite material. The high-ductility cement based composite material comprises components as follows: special cement, extra fine sand, water, a water reducing agent and fibers. The high-ductility cement based composite material comprises the components in parts by weight as follows: 50-80 parts of the special cement, 18-55 parts of the extra fine sand, 10-30 parts of the water, 0.25-1.2 parts of the water reducing agent and 0.8-1.8 parts of the fibers; wherein the special cement comprises components in parts by weight 70-85 parts of active mixed materials, 10-20 parts of sulfate and 1-5 parts of alkali; and at least one type of the active mixed materials is selected from slags, coal ash, phosphorus slags or steel slags. The high-ductility cement based composite material can reduce energy consumption effectively, reduce environmental pollution and improve the utilization rate of industrial waste residues, and has high ductility and bearing capacity at the same time.
Description
technical field [0001] The invention relates to a composite material for construction, in particular to a high-ductility cement-based composite material. Background technique [0002] Cement concrete has always been the most important building material. It has the advantages of wide source of raw materials, simple process, fire prevention, strong adaptability and convenient application. However, at the same time, concrete materials also have low tensile strength, poor toughness, low reliability and After cracking, the crack width is difficult to control and other shortcomings. These shortcomings seriously affect the durability and service life of concrete structures, making it a worldwide major engineering technology problem in the field of civil engineering. Therefore, it is particularly important to find high-performance cement-based composites with controllable crack width and high-performance cement-based composites with good strain hardening ability. [0003] In the e...
Claims
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IPC IPC(8): C04B28/14
CPCY02A30/30
Inventor 高育欣余保英徐芬莲
Owner 广西中建西部建设有限公司