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A technology for concrete and raw materials, applied in the field of concrete, can solve the problems of difficult to meet construction, low early activity, etc., and achieve the effects of saving costs, improving early strength performance and reducing costs
Inactive Publication Date: 2019-01-15
淮安市冰青建设工程管理有限公司
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Problems solved by technology
At present, although the existing mineral admixtures such as blast furnace slag, fly ash, and metakaolin can improve the durability of concrete, their early activity is low, and it is difficult to meet the requirements for the construction of concrete prefabricated products that require early strength.
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Embodiment 1
[0018] In terms of parts by mass, including raw materials: 100 parts of cement, 30 parts of fly ash, 30 parts of blast furnace slag, 16 parts of ceramic waste, 35 parts of gravel, 40 parts of waste concrete, 1 part of admixture, 3 parts of water reducer , 30 parts of light fillers.
[0019] Wherein, the light filler is a mixture of light calcium carbonate and diatomite, and the weight ratio of the light calcium carbonate to diatomite is 4:1.
Embodiment 2
[0021] In terms of parts by mass, including raw materials: 100 parts of cement, 35 parts of fly ash, 35 parts of blast furnace slag, 14 parts of ceramic waste, 30 parts of gravel, 35 parts of waste concrete, 5 parts of admixture, 10 parts of lightweight filler .
[0022] Wherein, the light filler is a mixture of light calcium carbonate and diatomite, and the weight ratio of the light calcium carbonate to diatomite is 6:1.
[0023] Additives described in Examples 1 and 2, in parts by mass, 40-50 parts of polycarboxylate water reducer, 15-20 parts of cellulose grafted chitosan, 15-20 parts of flue deposits , 5-10 parts of silane coupling agent, 1-5 parts of polyvinylpyrrolidone, 1-5 parts of silicon carbide, 3-6 parts of hollow glass microspheres, 5-10 parts of silica-coated titanium dioxide, 2- 8 servings.
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Abstract
The invention belongs to the technical field of concrete and specifically relates to admixture concrete. the admixture concrete comprises the following raw materials (by weight): 100 parts of cement,30-35 parts of fly ash, 30-35 parts of blast furnace slag, 14-16 parts of ceramic waste, 30-35 parts of broken stone, 35-40 parts of waste concrete, 1-5 parts of an additive, and 10-30 parts of a lightweight filler. According to the admixture concrete, fly ash, blast furnace slag and other industrial waste residues can be utilized to avoid environmental pollution. In comparison with common concrete, the admixture concrete has the following advantages: use amount of cement is reduced; costs are reduced; and early strength performance of concrete is improved.
Description
technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to admixture concrete. Background technique [0002] Concrete is the most widely used building material in modern times. It has the advantages of abundant raw materials, low price, simple process, high strength and good durability. Ready-mixed concrete is a kind of concrete, which refers to cement, aggregates, water, admixtures, mineral admixtures and other components mixed in according to a certain proportion in a mixing station after being measured and mixed, and sold. Concrete mixture transported to the place of use within the specified time by transport truck. Because of the high environmental impact of on-site construction, ready-mixed concrete has received increasing attention. However, after mixing concrete materials, chemical reactions will occur over time, which will have adverse effects on concrete fluidity, slump loss, workability, etc. Therefore, ready-mix...
Claims
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Application Information
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