Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry and hard machine-made sand pavement concrete and machine-made sand concrete pavement construction process
The invention discloses dry and hard machine-made sand pavement concrete and a machine-made sand concrete pavement construction process. The machine-made sand pavement concrete comprises the following components in parts by weight: 290-340 parts of cement; 566 to 665 parts of machine-made sand; 1292 to 1410 parts of stone; 2 to 3.4 parts of an admixture ; and 130 to 163 parts of water for concrete. The admixture comprises the following components in parts by weight: 30-50 parts of a water reducing agent; 0.02 to 0.1 part of a water retaining agent; 0.01 to 0.05 part of a defoaming agent; 0.1 to 0.5 part of an air entraining agent; and 50-70 parts of admixture water. The machine-made sand airfield pavement concrete water reducing agent is a polycarboxylic acid high-performance water reducing agent, the solid content is 40%-45%, and the water reducing rate is 20%-25%. According to the invention, the water reducer is added to obviously enhance the strength of the concrete, so that the concrete has good adaptability, and when the concrete is doped into the concrete, the concrete has an obvious improvement effect on various properties of the concrete under the condition that the same powder is not changed, and the problems of poor workability, large water absorption, difficulty in slurry extraction and consistency loss of the machine-made sand pavement concrete are effectively solved.
本发明公开一种干硬性机制砂道面混凝土及机制砂混凝土道面施工工艺，该机制砂道面混凝土包括以下组分及其重量份：水泥290～340份；机制砂566～665份；石子1292～1410份；外加剂2～3.4份；混凝土用水130～163份；所述外加剂包括以下组分及其重量份：减水剂30～50份；保水剂0.02～0.1份；消泡剂0.01～0.05份；引气剂0.1～0.5份；外加剂用水50～70份；所述机制砂机场道面混凝土减水剂为聚羧酸高性能减水剂，含固量为40％～45％，减水率为20％～25％。本发明通过添加减水剂对混凝土强度的增强作用明显，具有良好的适应性，掺入混凝土时在同粉料不变的情况下对混凝土各项性能均有明显的改善作用，有效解决机制砂道面混凝土和易性差、吸水量大、不易提浆、稠度损失的问题。
Dry and hard machine-made sand pavement concrete and machine-made sand concrete pavement construction process
The invention discloses dry and hard machine-made sand pavement concrete and a machine-made sand concrete pavement construction process. The machine-made sand pavement concrete comprises the following components in parts by weight: 290-340 parts of cement; 566 to 665 parts of machine-made sand; 1292 to 1410 parts of stone; 2 to 3.4 parts of an admixture ; and 130 to 163 parts of water for concrete. The admixture comprises the following components in parts by weight: 30-50 parts of a water reducing agent; 0.02 to 0.1 part of a water retaining agent; 0.01 to 0.05 part of a defoaming agent; 0.1 to 0.5 part of an air entraining agent; and 50-70 parts of admixture water. The machine-made sand airfield pavement concrete water reducing agent is a polycarboxylic acid high-performance water reducing agent, the solid content is 40%-45%, and the water reducing rate is 20%-25%. According to the invention, the water reducer is added to obviously enhance the strength of the concrete, so that the concrete has good adaptability, and when the concrete is doped into the concrete, the concrete has an obvious improvement effect on various properties of the concrete under the condition that the same powder is not changed, and the problems of poor workability, large water absorption, difficulty in slurry extraction and consistency loss of the machine-made sand pavement concrete are effectively solved.
本发明公开一种干硬性机制砂道面混凝土及机制砂混凝土道面施工工艺，该机制砂道面混凝土包括以下组分及其重量份：水泥290～340份；机制砂566～665份；石子1292～1410份；外加剂2～3.4份；混凝土用水130～163份；所述外加剂包括以下组分及其重量份：减水剂30～50份；保水剂0.02～0.1份；消泡剂0.01～0.05份；引气剂0.1～0.5份；外加剂用水50～70份；所述机制砂机场道面混凝土减水剂为聚羧酸高性能减水剂，含固量为40％～45％，减水率为20％～25％。本发明通过添加减水剂对混凝土强度的增强作用明显，具有良好的适应性，掺入混凝土时在同粉料不变的情况下对混凝土各项性能均有明显的改善作用，有效解决机制砂道面混凝土和易性差、吸水量大、不易提浆、稠度损失的问题。
Dry and hard machine-made sand pavement concrete and machine-made sand concrete pavement construction process
一种干硬性机制砂道面混凝土及机制砂混凝土道面施工工艺
HUO ZHENSHENG (Autor:in) / SHANG LIMING (Autor:in) / YE QIYE (Autor:in) / CAO GUANGFEI (Autor:in) / DING JINGCE (Autor:in) / DAI HUISHENG (Autor:in) / ZHAO XIAODONG (Autor:in) / WANG GUOQING (Autor:in) / YANG YUEBO (Autor:in)
13.08.2021
Patent
Elektronische Ressource
Chinesisch
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