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A platform for research: civil engineering, architecture and urbanism
Anti-seepage and anti-corrosion concrete material and preparation method thereof
The invention discloses an anti-seepage and anti-corrosion concrete material and a preparation method thereof, and the anti-seepage and anti-corrosion concrete material comprises the following components in parts by weight: 120-200 parts of Portland cement, 600-950 parts of broken stone, 550-900 parts of fine sand, 30-50 parts of fly ash, 15-30 parts of gypsum, 10-20 parts of calcium nitrite, 5-10 parts of nanoscale silicon oxide, 1-3 parts of a repairing agent, 1-4 parts of a water reducing agent, 1-3 parts of an expanding agent and a proper amount of water. The repairing agent is specifically mixture powder of flocculent porous colloid and sodium silicate, the flocculent porous colloid is specifically Fe (OH) 3 flocculent porous colloid, the water reducing agent is specifically a polycarboxylic acid water reducing agent, and the expanding agent is specifically a calcium sulphoaluminate expanding agent. According to the anti-seepage and anti-corrosion concrete material provided by the invention, the nano-scale silicon oxide is added into the concrete, so that the pores and compactness of the concrete are improved and optimized, and the hydration heat release rate and the pore solution surface energy are reduced by inhibiting condensation, hardening and water evaporation of a concrete mixture. Calcium nitrite is added, so that the concrete has relatively high chlorine salt corrosion resistance.
本发明公开一种防渗防腐混凝土材料及其制备方法，按如下重量份组分组成：硅酸盐水泥120‑200份、碎石600‑950份、细砂550‑900份、粉煤灰30‑50份、石膏15‑30份、亚硝酸钙10‑20份、纳米级氧化硅5‑10份、修复剂1‑3份、减水剂1‑4份、膨胀剂1‑3份和适量的水，所述修复剂具体为絮状多孔胶体和硅酸钠的混合物粉末，所述絮状多孔胶体具体为Fe(OH)3絮状多孔胶体，其中减水剂具体为聚羧酸减水剂，所述膨胀剂具体为硫铝酸钙型膨胀剂。本发明提供的一种防渗防腐混凝土材料，通过向混凝土中加入纳米级氧化硅，改善优化混凝土孔隙和密实度，通过加入抑制混凝土拌合物凝结硬化水分蒸发，降低水化放热速率与孔溶液表面能，加入亚硝酸钙使得混凝土具有较强的抗氯盐腐蚀能力。
Anti-seepage and anti-corrosion concrete material and preparation method thereof
The invention discloses an anti-seepage and anti-corrosion concrete material and a preparation method thereof, and the anti-seepage and anti-corrosion concrete material comprises the following components in parts by weight: 120-200 parts of Portland cement, 600-950 parts of broken stone, 550-900 parts of fine sand, 30-50 parts of fly ash, 15-30 parts of gypsum, 10-20 parts of calcium nitrite, 5-10 parts of nanoscale silicon oxide, 1-3 parts of a repairing agent, 1-4 parts of a water reducing agent, 1-3 parts of an expanding agent and a proper amount of water. The repairing agent is specifically mixture powder of flocculent porous colloid and sodium silicate, the flocculent porous colloid is specifically Fe (OH) 3 flocculent porous colloid, the water reducing agent is specifically a polycarboxylic acid water reducing agent, and the expanding agent is specifically a calcium sulphoaluminate expanding agent. According to the anti-seepage and anti-corrosion concrete material provided by the invention, the nano-scale silicon oxide is added into the concrete, so that the pores and compactness of the concrete are improved and optimized, and the hydration heat release rate and the pore solution surface energy are reduced by inhibiting condensation, hardening and water evaporation of a concrete mixture. Calcium nitrite is added, so that the concrete has relatively high chlorine salt corrosion resistance.
本发明公开一种防渗防腐混凝土材料及其制备方法，按如下重量份组分组成：硅酸盐水泥120‑200份、碎石600‑950份、细砂550‑900份、粉煤灰30‑50份、石膏15‑30份、亚硝酸钙10‑20份、纳米级氧化硅5‑10份、修复剂1‑3份、减水剂1‑4份、膨胀剂1‑3份和适量的水，所述修复剂具体为絮状多孔胶体和硅酸钠的混合物粉末，所述絮状多孔胶体具体为Fe(OH)3絮状多孔胶体，其中减水剂具体为聚羧酸减水剂，所述膨胀剂具体为硫铝酸钙型膨胀剂。本发明提供的一种防渗防腐混凝土材料，通过向混凝土中加入纳米级氧化硅，改善优化混凝土孔隙和密实度，通过加入抑制混凝土拌合物凝结硬化水分蒸发，降低水化放热速率与孔溶液表面能，加入亚硝酸钙使得混凝土具有较强的抗氯盐腐蚀能力。
Anti-seepage and anti-corrosion concrete material and preparation method thereof
一种防渗防腐混凝土材料及其制备方法
ZHANG JINTAO (author) / ZHANG ZHENZHONG (author) / ZHANG JINPENG (author) / LI XUANDI (author)
2022-07-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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