Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack concrete and preparation process thereof
The invention discloses anti-crack concrete and a preparation process thereof. The concrete comprises the following raw materials in parts by mass: 303-398 parts of cement; 363 to 476 parts of sand; 636 to 830 parts of aggregate; 180 to 239 parts of water; 1.9 to 2.5 parts of a water reducing agent; 61.3 to 72.4 parts of modified glass fiber; the sintered particles are fixed on the surface of the glass fiber in a melting semi-embedding manner, so that the binding force between the glass fiber and a peripheral concrete base material is improved under the condition of not damaging a glass fiber body, and the sintered particles are different from current chemically-modified silane glass fiber and chemically-etched glass fiber; the improvement effect on the crack resistance of the concrete is originally higher than that of chemically-etched glass fibers, and the defect that the strength of a chemically-etched glass fiber body is reduced and the effect is enhanced is overcome, so that when the concrete is subjected to a high load, the joint surface of a concrete base material and the glass fibers is not easy to crack and separate; therefore, the crack resistance of the concrete is further improved.
本申请公开了一种抗裂的混凝土及其制备工艺，混凝土包括以下质量份的原料：水泥303~398份；砂363~476份；骨料636~830份；水180~239份；减水剂1.9~2.5份；改性玻璃纤维61.3~72.4份；烧结粒通过熔融半嵌入的方式固定于玻璃纤维表面，在不损伤玻璃纤维本体情况下改良玻璃纤维与周边混凝土基材的结合力，有别与当前化学硅烷改性的玻璃纤维、化学刻蚀的玻璃纤维，其对混凝土抗裂性能的改良效果原高于化学硅烷改性的玻璃纤维，且无化学刻蚀的玻璃纤维本体强度降低而无增效的弊端，使本申请的混凝土受到高荷载时混凝土基材与玻璃纤维的结合面不易出现开裂分离，由此继而改良混凝土的抗裂性能。
Anti-crack concrete and preparation process thereof
The invention discloses anti-crack concrete and a preparation process thereof. The concrete comprises the following raw materials in parts by mass: 303-398 parts of cement; 363 to 476 parts of sand; 636 to 830 parts of aggregate; 180 to 239 parts of water; 1.9 to 2.5 parts of a water reducing agent; 61.3 to 72.4 parts of modified glass fiber; the sintered particles are fixed on the surface of the glass fiber in a melting semi-embedding manner, so that the binding force between the glass fiber and a peripheral concrete base material is improved under the condition of not damaging a glass fiber body, and the sintered particles are different from current chemically-modified silane glass fiber and chemically-etched glass fiber; the improvement effect on the crack resistance of the concrete is originally higher than that of chemically-etched glass fibers, and the defect that the strength of a chemically-etched glass fiber body is reduced and the effect is enhanced is overcome, so that when the concrete is subjected to a high load, the joint surface of a concrete base material and the glass fibers is not easy to crack and separate; therefore, the crack resistance of the concrete is further improved.
本申请公开了一种抗裂的混凝土及其制备工艺，混凝土包括以下质量份的原料：水泥303~398份；砂363~476份；骨料636~830份；水180~239份；减水剂1.9~2.5份；改性玻璃纤维61.3~72.4份；烧结粒通过熔融半嵌入的方式固定于玻璃纤维表面，在不损伤玻璃纤维本体情况下改良玻璃纤维与周边混凝土基材的结合力，有别与当前化学硅烷改性的玻璃纤维、化学刻蚀的玻璃纤维，其对混凝土抗裂性能的改良效果原高于化学硅烷改性的玻璃纤维，且无化学刻蚀的玻璃纤维本体强度降低而无增效的弊端，使本申请的混凝土受到高荷载时混凝土基材与玻璃纤维的结合面不易出现开裂分离，由此继而改良混凝土的抗裂性能。
Anti-crack concrete and preparation process thereof
一种抗裂的混凝土及其制备工艺
MAO ZENGHUI (Autor:in) / HE GUOGUANG (Autor:in) / MIAO YI (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
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