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A platform for research: civil engineering, architecture and urbanism
Preparation method of foam cement with dry shrinkage resistance
The invention discloses a preparation method of foamed cement with dry shrinkage resistance. The preparation method comprises the following steps: (1) preparing solid waste source sulphoaluminate cement clinker; (2) crushing and sieving the gypsum board coated with the glue to obtain gypsum powder, and adding the gypsum powder into the solid waste source sulphoaluminate cement clinker to obtain a solid waste source sulphoaluminate cement mixture; and (3) adding a foam stabilizer and water into the cement mixture obtained in the step (2), stirring, adding a hydrogen peroxide aqueous solution, continuously stirring, quickly pouring into a mold after stirring, demolding, and transferring to a standard curing room for curing. According to the method, when the foamed cement is prepared, the gypsum board coated with glue is ground into powder, the powder is added into the solid waste source sulphoaluminate cement clinker, and compared with existing foamed cement, the dry shrinkage resistance of the foamed cement is greatly improved; on the other hand, the dry density and the heat conductivity coefficient of the foamed cement can be effectively reduced; and meanwhile, most of the raw materials used by the sulphoaluminate cement clinker are solid wastes, so that the resource utilization of the solid wastes can be realized.
本发明公开了一种自带抗干缩性能泡沫水泥的制备方法，包括如下步骤：(1)制备固废源硫铝酸盐水泥熟料；(2)将涂有胶水的石膏板粉碎过筛，得到石膏粉末，将石膏粉末加入固废源硫铝酸盐水泥熟料中，得到固废源硫铝酸盐水泥混合料；(3)往步骤(2)的水泥混合料中加入稳泡剂和水，搅拌后再加入过氧化氢水溶液，继续搅拌，搅拌后迅速浇筑至模具中，脱模后移至标养室养护。本发明方法在制备泡沫水泥时将涂有胶水的石膏板磨成粉末加入固废源硫铝酸盐水泥熟料中，相比于现有泡沫水泥，本发明泡沫水泥的抗干缩能力大幅提高；另一方面还能有效降低泡沫水泥的干密度和导热系数；同时本发明硫铝酸盐水泥熟料所用原材料大部分为固废，能够实现固废的资源化利用。
Preparation method of foam cement with dry shrinkage resistance
The invention discloses a preparation method of foamed cement with dry shrinkage resistance. The preparation method comprises the following steps: (1) preparing solid waste source sulphoaluminate cement clinker; (2) crushing and sieving the gypsum board coated with the glue to obtain gypsum powder, and adding the gypsum powder into the solid waste source sulphoaluminate cement clinker to obtain a solid waste source sulphoaluminate cement mixture; and (3) adding a foam stabilizer and water into the cement mixture obtained in the step (2), stirring, adding a hydrogen peroxide aqueous solution, continuously stirring, quickly pouring into a mold after stirring, demolding, and transferring to a standard curing room for curing. According to the method, when the foamed cement is prepared, the gypsum board coated with glue is ground into powder, the powder is added into the solid waste source sulphoaluminate cement clinker, and compared with existing foamed cement, the dry shrinkage resistance of the foamed cement is greatly improved; on the other hand, the dry density and the heat conductivity coefficient of the foamed cement can be effectively reduced; and meanwhile, most of the raw materials used by the sulphoaluminate cement clinker are solid wastes, so that the resource utilization of the solid wastes can be realized.
本发明公开了一种自带抗干缩性能泡沫水泥的制备方法，包括如下步骤：(1)制备固废源硫铝酸盐水泥熟料；(2)将涂有胶水的石膏板粉碎过筛，得到石膏粉末，将石膏粉末加入固废源硫铝酸盐水泥熟料中，得到固废源硫铝酸盐水泥混合料；(3)往步骤(2)的水泥混合料中加入稳泡剂和水，搅拌后再加入过氧化氢水溶液，继续搅拌，搅拌后迅速浇筑至模具中，脱模后移至标养室养护。本发明方法在制备泡沫水泥时将涂有胶水的石膏板磨成粉末加入固废源硫铝酸盐水泥熟料中，相比于现有泡沫水泥，本发明泡沫水泥的抗干缩能力大幅提高；另一方面还能有效降低泡沫水泥的干密度和导热系数；同时本发明硫铝酸盐水泥熟料所用原材料大部分为固废，能够实现固废的资源化利用。
Preparation method of foam cement with dry shrinkage resistance
一种自带抗干缩性能泡沫水泥的制备方法
WANG ZENGMEI (author) / ZHANG ZUOYOU (author) / PANG FANGJIE (author) / WEI CHENGBO (author)
2023-08-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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