A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Super-durable concrete formula and preparation method thereof
The invention belongs to the technical field of concrete building materials, and particularly relates to a super-durable concrete formula and a preparation method thereof. The super-durable concrete formula comprises the following components in parts by weight: 300-360 parts of cement, 500-610 parts of quartz sand, 900-1100 parts of gravels, 30-60 parts of fly ash, 30-50 parts of mineral powder, 150-180 parts of water, 12-20 parts of asbestos-free mineral fibers, 12-15 parts of macroporous resin, 7-10 parts of a film-forming agent, 6-9 parts of a water reducing agent and 2-5 parts of a defoaming agent. Wherein the film-forming agent is a mixture of microcrystalline wax and stearic acid, and the mass ratio of microcrystalline wax to stearic acid is (2-5): 1. According to the asbestos-free mineral fiber, concrete and a steel bar have good bonding performance, a passive film can be formed on the surface of the steel bar through a film forming agent, external water and air are effectivelyprevented from entering the steel bar to generate a corrosion reaction, meanwhile, due to the super-strong adsorption characteristic of the macroporous resin, external water can be prevented from entering the steel bar to cause corrosion, The rust resistance and durability of the PC component are improved.
本发明属于混凝土建筑材料技术领域，具体涉及一种超耐久混凝土配方及其制备方法。本发明的超耐久混凝土配方，包括以下重量份数的组分：水泥300‑360份、石英砂500‑610份、碎石900‑1100份、粉煤灰30‑60份、矿粉30‑50份、水150‑180份、无石棉矿物纤维12‑20份、大孔树脂12‑15份、成膜剂7‑10份、减水剂6‑9份、消泡剂2‑5份；其中，成膜剂为微晶蜡和硬脂酸的混合物，微晶蜡和硬脂酸的质量比为(2‑5):1。本发明的无石棉矿物纤维使混凝土和钢筋之间具有良好的结合性，并有助于成膜剂在钢筋表面形成钝化膜，有效防止外界水和空气的进入发生腐蚀反应，同时大孔树脂超强吸附特性也有助于防止外界水分进入内部引起锈蚀，打打提高了PC构件的防锈性和耐久性。
Super-durable concrete formula and preparation method thereof
The invention belongs to the technical field of concrete building materials, and particularly relates to a super-durable concrete formula and a preparation method thereof. The super-durable concrete formula comprises the following components in parts by weight: 300-360 parts of cement, 500-610 parts of quartz sand, 900-1100 parts of gravels, 30-60 parts of fly ash, 30-50 parts of mineral powder, 150-180 parts of water, 12-20 parts of asbestos-free mineral fibers, 12-15 parts of macroporous resin, 7-10 parts of a film-forming agent, 6-9 parts of a water reducing agent and 2-5 parts of a defoaming agent. Wherein the film-forming agent is a mixture of microcrystalline wax and stearic acid, and the mass ratio of microcrystalline wax to stearic acid is (2-5): 1. According to the asbestos-free mineral fiber, concrete and a steel bar have good bonding performance, a passive film can be formed on the surface of the steel bar through a film forming agent, external water and air are effectivelyprevented from entering the steel bar to generate a corrosion reaction, meanwhile, due to the super-strong adsorption characteristic of the macroporous resin, external water can be prevented from entering the steel bar to cause corrosion, The rust resistance and durability of the PC component are improved.
本发明属于混凝土建筑材料技术领域，具体涉及一种超耐久混凝土配方及其制备方法。本发明的超耐久混凝土配方，包括以下重量份数的组分：水泥300‑360份、石英砂500‑610份、碎石900‑1100份、粉煤灰30‑60份、矿粉30‑50份、水150‑180份、无石棉矿物纤维12‑20份、大孔树脂12‑15份、成膜剂7‑10份、减水剂6‑9份、消泡剂2‑5份；其中，成膜剂为微晶蜡和硬脂酸的混合物，微晶蜡和硬脂酸的质量比为(2‑5):1。本发明的无石棉矿物纤维使混凝土和钢筋之间具有良好的结合性，并有助于成膜剂在钢筋表面形成钝化膜，有效防止外界水和空气的进入发生腐蚀反应，同时大孔树脂超强吸附特性也有助于防止外界水分进入内部引起锈蚀，打打提高了PC构件的防锈性和耐久性。
Super-durable concrete formula and preparation method thereof
一种超耐久混凝土配方及其制备方法
SHENG LEIJUN (author) / WANG YOULU (author) / HUANG GUOYANG (author) / LIU QUAN (author) / WEI LINGLING (author)
2021-03-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME