Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of anti-crack concrete
The invention relates to the technical field of building materials, and discloses a preparation process of anti-crack concrete, which is prepared from the following components in parts by mass: 300 to 500 parts of cement, 450 to 550 parts of sand, 1000 to 1200 parts of stone, 60 to 80 parts of fly ash, 180 to 220 parts of water, 10 to 20 parts of slag, 0.5 to 0.6 part of Grace fiber, 0.3 to 0.5 part of modified polypropylene fiber, 0.5 to 0.6 part of cellulose fiber and 8 to 16 parts of composite expanding agent. The grace fibers, the modified polypropylene fibers and the cellulosic fibers can all have a good anti-cracking effect, and when the proportion of the three fibers reaches 3: 2: 3, the anti-cracking effect is the best. By adding the composite expanding agent, the cracking phenomenon of the concrete caused by temperature, dry shrinkage and the like can be effectively prevented.
本发明涉及建筑材料技术领域，且公开了一种抗裂混凝土的制备工艺，包括以下质量份数的各组分：水泥300‑500份、砂450‑550份、石子1000‑1200份、粉煤灰60‑80份、水180‑220份、矿渣10‑20份、格雷斯纤维0.5‑0.6份、改性聚丙烯纤维0.3‑0.5份、纤维素纤维0.5‑0.6份、复合膨胀剂8‑16份。本发明中的格雷斯纤维、改性聚丙烯纤维、纤维素纤维均能起到很好的抗裂作用，且三种纤维的比例达到3:2:3时，抗裂效果最好。复合膨胀剂的添加能够有效防止因温度、干缩等原因导致的混凝土的开裂现象。
Preparation process of anti-crack concrete
The invention relates to the technical field of building materials, and discloses a preparation process of anti-crack concrete, which is prepared from the following components in parts by mass: 300 to 500 parts of cement, 450 to 550 parts of sand, 1000 to 1200 parts of stone, 60 to 80 parts of fly ash, 180 to 220 parts of water, 10 to 20 parts of slag, 0.5 to 0.6 part of Grace fiber, 0.3 to 0.5 part of modified polypropylene fiber, 0.5 to 0.6 part of cellulose fiber and 8 to 16 parts of composite expanding agent. The grace fibers, the modified polypropylene fibers and the cellulosic fibers can all have a good anti-cracking effect, and when the proportion of the three fibers reaches 3: 2: 3, the anti-cracking effect is the best. By adding the composite expanding agent, the cracking phenomenon of the concrete caused by temperature, dry shrinkage and the like can be effectively prevented.
本发明涉及建筑材料技术领域，且公开了一种抗裂混凝土的制备工艺，包括以下质量份数的各组分：水泥300‑500份、砂450‑550份、石子1000‑1200份、粉煤灰60‑80份、水180‑220份、矿渣10‑20份、格雷斯纤维0.5‑0.6份、改性聚丙烯纤维0.3‑0.5份、纤维素纤维0.5‑0.6份、复合膨胀剂8‑16份。本发明中的格雷斯纤维、改性聚丙烯纤维、纤维素纤维均能起到很好的抗裂作用，且三种纤维的比例达到3:2:3时，抗裂效果最好。复合膨胀剂的添加能够有效防止因温度、干缩等原因导致的混凝土的开裂现象。
Preparation process of anti-crack concrete
一种抗裂混凝土的制备工艺
NAN CHUNMING (Autor:in) / LI HONGWEI (Autor:in) / QIAO JINNING (Autor:in) / YANG BAOWANG (Autor:in) / LI QINGHONG (Autor:in) / HOU JUNQI (Autor:in) / CAI YANHUI (Autor:in) / REN XINGXING (Autor:in) / ZHOU YANG (Autor:in) / ZHANG YAYUN (Autor:in)
08.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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