Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a high-hardness artificial stone, which is prepared from the following raw materials in parts by weight: 350 to 450 parts of cement, 150 to 220 parts of water, 650 to 750 parts of river sand, 1000 to 1100 parts of broken stone, 350 to 450 parts of slag, 5 to 10 parts of carbon fiber, 80 to 125 parts of fly ash, 40 to 60 parts of silica fume, 5 to 10 parts of water reducing agent, 5 to 10 parts of shrinkage reducing agent, 10 to 15 parts of exciting agent, 0.8 to 1.5 parts of dispersing agent and 0.5 to 1 part of defoaming agent. The artificial stone has the beneficial effects that the tensile strength is increased while the artificial stone is ensured to have considerable compressive strength by adopting a reasonable carbon fiber mixing amount. Hydroxypropyl methyl cellulose (HPMC) is adopted as a dispersing agent of carbon fibers, the hydroxypropyl methyl cellulose has more polar groups and forms hydrogen bonds with polar water molecules, and meanwhile, monomolecular films and spherical micelles are formed on the surface of liquid and in the liquid, so that the area between water and air is reduced, the surface tension of a solution is sharply reduced, further, the hydrophilicity and wettability of the carbon fibers are improved, the dispersity of the carbon fibers is improved, and a colloid-like dispersion system is formed.
本发明为涉及一种高硬度人造石，由包括如下重量份的原料制成，水泥350‑450份、水150‑220份、河砂650‑750份、碎石1000‑1100份、矿渣350‑450份、碳纤维5‑10份、粉煤灰80‑125份、硅灰40‑60份、减水剂5‑10份、减缩剂5‑10份、激发剂10‑15份、分散剂0.8‑1.5份、消泡剂0.5‑1份。有益效果是：通过采用合理的碳纤维掺量保证人造石具有相当的抗压强度的同时，又增加了抗拉强度。采用羟丙基甲基纤维素(HPMC)作为碳纤维的分散剂，羟丙基甲基纤维素具有更多的极性基团，与极性水分子形成氢键，同时在液体表面和内部形成单分子膜和球状胶束，以降低水和空气间的面积，使溶液的表面张力急剧降低，从而增大了碳纤维的亲水性和浸润性，提高了其分散性，形成类胶体分散体系。
The invention relates to a high-hardness artificial stone, which is prepared from the following raw materials in parts by weight: 350 to 450 parts of cement, 150 to 220 parts of water, 650 to 750 parts of river sand, 1000 to 1100 parts of broken stone, 350 to 450 parts of slag, 5 to 10 parts of carbon fiber, 80 to 125 parts of fly ash, 40 to 60 parts of silica fume, 5 to 10 parts of water reducing agent, 5 to 10 parts of shrinkage reducing agent, 10 to 15 parts of exciting agent, 0.8 to 1.5 parts of dispersing agent and 0.5 to 1 part of defoaming agent. The artificial stone has the beneficial effects that the tensile strength is increased while the artificial stone is ensured to have considerable compressive strength by adopting a reasonable carbon fiber mixing amount. Hydroxypropyl methyl cellulose (HPMC) is adopted as a dispersing agent of carbon fibers, the hydroxypropyl methyl cellulose has more polar groups and forms hydrogen bonds with polar water molecules, and meanwhile, monomolecular films and spherical micelles are formed on the surface of liquid and in the liquid, so that the area between water and air is reduced, the surface tension of a solution is sharply reduced, further, the hydrophilicity and wettability of the carbon fibers are improved, the dispersity of the carbon fibers is improved, and a colloid-like dispersion system is formed.
本发明为涉及一种高硬度人造石，由包括如下重量份的原料制成，水泥350‑450份、水150‑220份、河砂650‑750份、碎石1000‑1100份、矿渣350‑450份、碳纤维5‑10份、粉煤灰80‑125份、硅灰40‑60份、减水剂5‑10份、减缩剂5‑10份、激发剂10‑15份、分散剂0.8‑1.5份、消泡剂0.5‑1份。有益效果是：通过采用合理的碳纤维掺量保证人造石具有相当的抗压强度的同时，又增加了抗拉强度。采用羟丙基甲基纤维素(HPMC)作为碳纤维的分散剂，羟丙基甲基纤维素具有更多的极性基团，与极性水分子形成氢键，同时在液体表面和内部形成单分子膜和球状胶束，以降低水和空气间的面积，使溶液的表面张力急剧降低，从而增大了碳纤维的亲水性和浸润性，提高了其分散性，形成类胶体分散体系。
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