Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses low-temperature-rise anti-crack anti-impact-wear concrete and a preparation method thereof. The low-temperature-rise anti-crack anti-impact-wear concrete comprises 120-140 kg/m<3> of water, 251-334 kg/m<3> of cement, 15-24 kg/m<3> of silicon powder, 68-89 kg/m<3> of fly ash, 1.0-1.2 kg/m<3> of fibers, 590-720kg/m<3> of sand, 1226-1292kg/m<3> of gravels, 2.35-3.10kg/m<3> ofpolycarboxylate superplasticizer, and 0.022-0.032kg/m<3> of air entraining agent. The preparation method comprises the following steps: adding the cement, the silicon powder, the fly ash, the PVA fibers, the sand and the gravels into a mixing container in proportion, conducting stirring for 90-120 seconds, adding the water, the air entraining agent and the polycarboxylate superplasticizer into theobtained mixture, and sufficiently conducting mixing and stirring for 80-90 seconds, thereby obtaining the low-temperature-rise anti-crack anti-impact-wear concrete. The invention has the advantagesof low hydration heat, low energy consumption and good toughness and remarkable technical and economic benefits, and can greatly reduce the later operation and maintenance cost.
一种低温升的抗裂抗冲磨混凝土及其制备方法，低温升的抗裂抗冲磨混凝土包括水120～140kg/m3、水泥251～334kg/m3、硅粉15～24kg/m3、粉煤灰68～89kg/m3、纤维1.0～1.2kg/m3、砂590～720kg/m3、碎石1226～1292kg/m3、聚羧酸减水剂2.35～3.10kg/m3及引气剂0.022～0.032kg/m3；先将水泥，硅粉，粉煤灰，PVA聚乙烯醇纤维，砂，碎石按比例加入混合容器中进行搅拌90～120s，然后向上述所得混合物加入水、引气剂和聚羧酸减水剂，充分混合搅拌80～90s，即可得到所述低温升的抗裂抗冲磨混凝土；本发明具有水化热低、能源消耗低、韧性好的优点及显著的技术经济效益，同时也会大大降低后期运行和维修的费用。
The invention discloses low-temperature-rise anti-crack anti-impact-wear concrete and a preparation method thereof. The low-temperature-rise anti-crack anti-impact-wear concrete comprises 120-140 kg/m<3> of water, 251-334 kg/m<3> of cement, 15-24 kg/m<3> of silicon powder, 68-89 kg/m<3> of fly ash, 1.0-1.2 kg/m<3> of fibers, 590-720kg/m<3> of sand, 1226-1292kg/m<3> of gravels, 2.35-3.10kg/m<3> ofpolycarboxylate superplasticizer, and 0.022-0.032kg/m<3> of air entraining agent. The preparation method comprises the following steps: adding the cement, the silicon powder, the fly ash, the PVA fibers, the sand and the gravels into a mixing container in proportion, conducting stirring for 90-120 seconds, adding the water, the air entraining agent and the polycarboxylate superplasticizer into theobtained mixture, and sufficiently conducting mixing and stirring for 80-90 seconds, thereby obtaining the low-temperature-rise anti-crack anti-impact-wear concrete. The invention has the advantagesof low hydration heat, low energy consumption and good toughness and remarkable technical and economic benefits, and can greatly reduce the later operation and maintenance cost.
一种低温升的抗裂抗冲磨混凝土及其制备方法，低温升的抗裂抗冲磨混凝土包括水120～140kg/m3、水泥251～334kg/m3、硅粉15～24kg/m3、粉煤灰68～89kg/m3、纤维1.0～1.2kg/m3、砂590～720kg/m3、碎石1226～1292kg/m3、聚羧酸减水剂2.35～3.10kg/m3及引气剂0.022～0.032kg/m3；先将水泥，硅粉，粉煤灰，PVA聚乙烯醇纤维，砂，碎石按比例加入混合容器中进行搅拌90～120s，然后向上述所得混合物加入水、引气剂和聚羧酸减水剂，充分混合搅拌80～90s，即可得到所述低温升的抗裂抗冲磨混凝土；本发明具有水化热低、能源消耗低、韧性好的优点及显著的技术经济效益，同时也会大大降低后期运行和维修的费用。
Low-temperature-rise anti-crack anti-impact-wear concrete and preparation method of low-temperature-rise anti-crack anti-impact-wear concrete
一种低温升的抗裂抗冲磨混凝土及其制备方法
WANG LEI (Autor:in)
12.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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