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A platform for research: civil engineering, architecture and urbanism
Inorganic waterproof material and preparation method thereof
The invention belongs to the technical field of waterproof materials, and particularly relates to an inorganic waterproof material and a preparation method thereof, the inorganic waterproof material is prepared from the following raw materials by weight: 70-80 parts of Portland cement, 100-110 parts of fine river sand, 10-15 parts of sodium carbonate, 5-10 parts of sodium bicarbonate, 1-3 parts of a water reducer, and 30-40 parts of water; the cement is hydrated, hydrated calcium silicate and calcium hydroxide are generated after hydration, sodium carbonate and sodium bicarbonate are added into the hydrated base material, the sodium carbonate and the calcium hydroxide react to generate insoluble calcium carbonate, micropores in the base material are filled in situ, the base material is compacted, and then the system is subjected to heat preservation treatment, so that the heat preservation performance of the system is improved. Sodium bicarbonate is heated and decomposed to generate carbon dioxide gas, and the carbon dioxide gas can enter gaps due to high flowability of the gas, so that fine pores in the system are further filled, the defect void ratio in the system is reduced, and the impermeability of the base material is improved.
本发明属于防水材料技术领域，具体涉及一种无机防水材料及其制备方法，由以下重量份的原料制成：硅酸盐水泥70‑80份、细河沙100‑110份、碳酸钠10‑15份、碳酸氢钠5‑10份、减水剂1‑3份、水30‑40份；本发明先使得水泥进行水化，水化后生成水化硅酸钙和氢氧化钙，之后在水化后的基料中加入碳酸钠和碳酸氢钠，碳酸钠与氢氧化钙反应生成不溶性碳酸钙，原位填补了基料中微细孔隙，密实了基料，而之后对体系进行保温处理，碳酸氢钠受热分解产生气体二氧化碳，由于气体的流动性较高，二氧化碳气体可进入空隙，进一步填补了体系中的微细孔隙，降低体系中的缺陷空隙率，提高了基料的抗渗性能。
Inorganic waterproof material and preparation method thereof
The invention belongs to the technical field of waterproof materials, and particularly relates to an inorganic waterproof material and a preparation method thereof, the inorganic waterproof material is prepared from the following raw materials by weight: 70-80 parts of Portland cement, 100-110 parts of fine river sand, 10-15 parts of sodium carbonate, 5-10 parts of sodium bicarbonate, 1-3 parts of a water reducer, and 30-40 parts of water; the cement is hydrated, hydrated calcium silicate and calcium hydroxide are generated after hydration, sodium carbonate and sodium bicarbonate are added into the hydrated base material, the sodium carbonate and the calcium hydroxide react to generate insoluble calcium carbonate, micropores in the base material are filled in situ, the base material is compacted, and then the system is subjected to heat preservation treatment, so that the heat preservation performance of the system is improved. Sodium bicarbonate is heated and decomposed to generate carbon dioxide gas, and the carbon dioxide gas can enter gaps due to high flowability of the gas, so that fine pores in the system are further filled, the defect void ratio in the system is reduced, and the impermeability of the base material is improved.
本发明属于防水材料技术领域，具体涉及一种无机防水材料及其制备方法，由以下重量份的原料制成：硅酸盐水泥70‑80份、细河沙100‑110份、碳酸钠10‑15份、碳酸氢钠5‑10份、减水剂1‑3份、水30‑40份；本发明先使得水泥进行水化，水化后生成水化硅酸钙和氢氧化钙，之后在水化后的基料中加入碳酸钠和碳酸氢钠，碳酸钠与氢氧化钙反应生成不溶性碳酸钙，原位填补了基料中微细孔隙，密实了基料，而之后对体系进行保温处理，碳酸氢钠受热分解产生气体二氧化碳，由于气体的流动性较高，二氧化碳气体可进入空隙，进一步填补了体系中的微细孔隙，降低体系中的缺陷空隙率，提高了基料的抗渗性能。
Inorganic waterproof material and preparation method thereof
一种无机防水材料及其制备方法
SONG SHAOLEI (author) / WANG YU (author) / JIANG HUI (author) / SU SHANJIE (author) / LI YAN (author) / CHEN GUIWU (author) / REN YAQUN (author)
2022-05-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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