Preparation method of cement foam concrete
A foam concrete and cement technology, applied in the field of building materials, can solve the problems affecting the strength of foam concrete, water resistance performance, difficulty in meeting high-quality foam concrete products, foam stability, and unsatisfactory uniformity, so as to improve foaming Ability and foam stability, good thermal insulation effect, and uniform porosity
Inactive Publication Date: 2018-04-13
ANHUI BEIMA TECH CO LTD
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Problems solved by technology
However, due to the high water absorption rate of the protein foaming agent, the foam stability and uniformity produced are not ideal, and the strength is not high, which affects the strength, water resistance and other performance of the foam concrete, so that the quality of the foam concrete obtained is low. The application fields of foam concrete are limited, and it is difficult to meet the demand for high-quality foam concrete products
Method used
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Experimental program
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Embodiment Construction
[0015] A preparation method for cement foam concrete, comprising the following steps:
[0016] (1) First, add 1 part by weight of microcrystalline cellulose to 20 parts by weight of sodium periodate solution for oxidation reaction at 30°C in the dark for 2 hours, wash the obtained oxidized microcrystalline cellulose with water, and then add 20 parts by weight of hydrogen sulfite Sulfonate the sodium solution at 60°C for 2 hours, wash with water again, add 80 parts by weight of water to disperse evenly, add 4 parts by weight of soybean protein, stir at 85°C for 1 hour, then add 1 part by weight of styrene and 0.01 parts by weight of potassium persulfate under nitrogen protection React at 60°C for 3 hours under the same conditions to obtain a soybean protein complex solution;
[0017] (2) Mix 80 parts by weight of cement, 20 parts by weight of fly ash, 2 parts by weight of anti-cracking fiber, 5 parts by weight of water reducing agent and 40 parts by weight of water to obtain co...
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The invention discloses a preparation method of cement foam concrete. The preparation method includes: grafting sodium periodate and sodium hydrogen sulfite oxidation-sulfonating modified microcrystalline cellulose with soybean protein, adding styrene to perform solution polymerization reaction, compounding with sodium dodecyl sulfate to obtain foam slurry, compounding with raw materials such as cement and fly ash to obtain concrete slurry, evenly mixing, pouring, and demoulding and curing to obtain the cement foam concrete. The cement foam concrete prepared by the method is good in strength and toughness, good in water resistance, high in anti-penetrability performance, even in porosity, stable in performance and good in thermal insulation performance.
Description
technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation method of cement foam concrete. Background technique [0002] Foamed concrete, also known as foamed cement, lightweight concrete, etc., is a new type of building energy-saving material that is waste-friendly, environmentally friendly, energy-saving, inexpensive and non-combustible. Foamed concrete is a concrete product that contains a large number of small closed pores and has considerable strength by introducing air or nitrogen, carbon dioxide, oxygen and other gases into the concrete slurry according to the application needs through chemical or physical means, and after reasonable curing and molding. . In the preparation process of foam concrete, it is required that the foam produced should be small and uniform, stable for a long time, not easy to break, and can form uniform closed pores after condensation, so as to obtain foam concrete that meets the ...
Claims
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IPC IPC(8): C04B38/10C04B28/00
CPCC04B28/00C04B2111/40C04B24/383C04B24/16C04B24/14C04B18/08C04B16/0633C04B2103/302C04B22/14C04B24/00C04B22/12C04B38/10
Inventor 陈篯孙维乐
Owner ANHUI BEIMA TECH CO LTD