A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of concrete preparation, and in particular, relates to anti-frost concrete for buildings and a preparation method of the anti-frost concrete. The anti-frost concrete is composed of the following raw materials in parts by weight: 600-700 parts of Portland cement, 450-550 parts of river sand, 90-120 parts of coal ash, 65-80 parts of coal gangue powder, 55-70 parts of modified AR glass fibers, 48-63 parts of modified pyrophyllite fine powder, 35-45 parts of silicon dioxide aerogel nano powder, 25-36 parts of polyvinyl alcohol fibers, 36-55 parts of slaked lime, 16-24 parts of sodium bicarbonate, 15-20 parts of a rosin thermopolymer air entraining agent, 20-30 parts of an anti-frost agent, 18-25 parts of a water reducing agent, 25-34 parts of reinforced fibers, 600-700 parts of an early strength agent and 560-680 parts of water. The concrete prepared by the preparation method disclosed by the invention not only has excellent frost resistance and compressive strength, but also has good splitting tensile strength, and can adapt to the construction of concrete at low temperature and negative temperature.
本发明涉及混凝土制备技术领域，更具体地说它涉及一种建筑用抗冻混凝土及其制备方法；由以下重量份数的原料组成：硅酸盐水泥600~700份、河沙450~550份、粉煤灰90~120份、煤矸石粉65~80份、改性AR玻璃纤维55~70份、改性叶腊石细粉48~63份、二氧化硅气凝胶纳米粉35~45份、聚乙烯醇纤维25~36份、熟石灰36~55份、碳酸氢钠16~24份、松香热聚物加气剂15~20份、防冻剂20~30份、减水剂18~25份、增强纤维25~34份、早强剂600~700份和水560~680份；通过本发明所制备的混凝土不仅具有优良的抗冻性能及抗压强度，而且其还具有很好的劈裂抗拉强度；能适应混凝土在低温、负温下的施工。
The invention relates to the technical field of concrete preparation, and in particular, relates to anti-frost concrete for buildings and a preparation method of the anti-frost concrete. The anti-frost concrete is composed of the following raw materials in parts by weight: 600-700 parts of Portland cement, 450-550 parts of river sand, 90-120 parts of coal ash, 65-80 parts of coal gangue powder, 55-70 parts of modified AR glass fibers, 48-63 parts of modified pyrophyllite fine powder, 35-45 parts of silicon dioxide aerogel nano powder, 25-36 parts of polyvinyl alcohol fibers, 36-55 parts of slaked lime, 16-24 parts of sodium bicarbonate, 15-20 parts of a rosin thermopolymer air entraining agent, 20-30 parts of an anti-frost agent, 18-25 parts of a water reducing agent, 25-34 parts of reinforced fibers, 600-700 parts of an early strength agent and 560-680 parts of water. The concrete prepared by the preparation method disclosed by the invention not only has excellent frost resistance and compressive strength, but also has good splitting tensile strength, and can adapt to the construction of concrete at low temperature and negative temperature.
本发明涉及混凝土制备技术领域，更具体地说它涉及一种建筑用抗冻混凝土及其制备方法；由以下重量份数的原料组成：硅酸盐水泥600~700份、河沙450~550份、粉煤灰90~120份、煤矸石粉65~80份、改性AR玻璃纤维55~70份、改性叶腊石细粉48~63份、二氧化硅气凝胶纳米粉35~45份、聚乙烯醇纤维25~36份、熟石灰36~55份、碳酸氢钠16~24份、松香热聚物加气剂15~20份、防冻剂20~30份、减水剂18~25份、增强纤维25~34份、早强剂600~700份和水560~680份；通过本发明所制备的混凝土不仅具有优良的抗冻性能及抗压强度，而且其还具有很好的劈裂抗拉强度；能适应混凝土在低温、负温下的施工。
Anti-frost-crack concrete expansive agent and preparation method thereof
| European Patent Office | 2015
| Engineering Index Backfile | 1940
| Online Contents | 1996
| Engineering Index Backfile | 1940