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A platform for research: civil engineering, architecture and urbanism
Calcination-free desulfurized gypsum building block and preparation method thereof
The invention relates to the technical field of gypsum blocks, and particularly discloses a calcination-free desulfurized gypsum block and a preparation method thereof. The invention relates to a calcination-free desulfurized gypsum building block, which is prepared from the following raw materials by weight: 50-60 parts of dihydrate desulfurized gypsum; 10 to 15 parts of fly ash; 5-10 parts of slag powder; 10 to 15 parts of cement; 4-6 parts of quick lime; 1-3 parts of a coagulant composition; 1-5 parts of an external additive; 20 to 30 parts of water; 30 to 40 parts of modified recycled aggregate; the modified recycled aggregate is obtained by modifying a recycled aggregate raw material through the following steps: S1, taking a water-based permeable crystalline material DPS solution, adding water to dilute the solution into a solution with the concentration of 60-70%, then mixing the solution with the recycled aggregate raw material according to the weight ratio of (4-6): 1, taking out the mixture after 3-5 hours, and curing the mixture in a curing room for 12-18 hours to obtain an intermediate product; s2, soaking the intermediate product in a saturated sodium silicate solution, taking out after 3-5 hours, and drying to obtain the modified recycled aggregate. The calcination-free desulfurized gypsum building block obtained by the invention keeps relatively excellent application stability in an environment with relatively high humidity.
本申请涉及石膏砌块技术领域，具体公开了一种免煅烧脱硫石膏砌块及其制备方法。一种免煅烧脱硫石膏砌块，由包含以下重量份的原料制成：二水脱硫石膏50‑60份；粉煤灰10‑15份；矿渣粉5‑10份；水泥10‑15份；生石灰4‑6份；促凝剂组合物1‑3份；外添加剂1‑5份；水20‑30份；改性再生骨料30‑40份；所述改性再生骨料由再生骨料原料经如下步骤改性得到：S1、取水性渗透结晶材料DPS溶液，加水稀释至60‑70%浓度的溶液，然后与再生骨料原料按重量比为（4‑6）:1进行混合，3‑5h后取出置于养护室内养护12‑18h，得到中间产物；S2、将中间产物浸泡在饱和硅酸钠溶液中，3‑5h后取出，烘干后即可得到改性再生骨料。本申请的得到的免煅烧脱硫石膏砌块在湿度较大的环境中保持较为优异的应用稳定性。
Calcination-free desulfurized gypsum building block and preparation method thereof
The invention relates to the technical field of gypsum blocks, and particularly discloses a calcination-free desulfurized gypsum block and a preparation method thereof. The invention relates to a calcination-free desulfurized gypsum building block, which is prepared from the following raw materials by weight: 50-60 parts of dihydrate desulfurized gypsum; 10 to 15 parts of fly ash; 5-10 parts of slag powder; 10 to 15 parts of cement; 4-6 parts of quick lime; 1-3 parts of a coagulant composition; 1-5 parts of an external additive; 20 to 30 parts of water; 30 to 40 parts of modified recycled aggregate; the modified recycled aggregate is obtained by modifying a recycled aggregate raw material through the following steps: S1, taking a water-based permeable crystalline material DPS solution, adding water to dilute the solution into a solution with the concentration of 60-70%, then mixing the solution with the recycled aggregate raw material according to the weight ratio of (4-6): 1, taking out the mixture after 3-5 hours, and curing the mixture in a curing room for 12-18 hours to obtain an intermediate product; s2, soaking the intermediate product in a saturated sodium silicate solution, taking out after 3-5 hours, and drying to obtain the modified recycled aggregate. The calcination-free desulfurized gypsum building block obtained by the invention keeps relatively excellent application stability in an environment with relatively high humidity.
本申请涉及石膏砌块技术领域，具体公开了一种免煅烧脱硫石膏砌块及其制备方法。一种免煅烧脱硫石膏砌块，由包含以下重量份的原料制成：二水脱硫石膏50‑60份；粉煤灰10‑15份；矿渣粉5‑10份；水泥10‑15份；生石灰4‑6份；促凝剂组合物1‑3份；外添加剂1‑5份；水20‑30份；改性再生骨料30‑40份；所述改性再生骨料由再生骨料原料经如下步骤改性得到：S1、取水性渗透结晶材料DPS溶液，加水稀释至60‑70%浓度的溶液，然后与再生骨料原料按重量比为（4‑6）:1进行混合，3‑5h后取出置于养护室内养护12‑18h，得到中间产物；S2、将中间产物浸泡在饱和硅酸钠溶液中，3‑5h后取出，烘干后即可得到改性再生骨料。本申请的得到的免煅烧脱硫石膏砌块在湿度较大的环境中保持较为优异的应用稳定性。
Calcination-free desulfurized gypsum building block and preparation method thereof
一种免煅烧脱硫石膏砌块及其制备方法
WANG XINGUANG (author) / WANG PANPAN (author) / CHANG YAN (author) / DING WEI (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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