Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified additive suitable for machine-made sand pipe pile concrete
The invention provides a modified additive suitable for machine-made sand pipe pile concrete, which is composed of the following components in percentage by mass: a polycarboxylate superplasticizer, apolyether defoamer, a thickener and water. The modified additive provided by the invention has the effects of improving workability such as workability, cohesiveness and water retention of concrete,reducing slump time loss and the like; an additive mother liquor can enable concrete to be good in slump retaining performance, and the strength is higher than that of common concrete; the modified additive can adjust the viscosity of concrete, so that the fresh concrete has good system stability, the phenomena of material collapse, slurry hanging and the like caused by poor system stability of the fresh concrete are reduced, and the surface color difference of the concrete and the appearance of the concrete are improved; on the premise that it is guaranteed that machine-made sand pipe pile concrete is easy to construct and the strength is not reduced, the using amount of concrete glue materials is reduced by 5%-10%, and machine-made sand pipe pile concrete mixtures are prevented from collapsing and hanging slurry.
本发明提供一种适用于机制砂管桩混凝土的改性外加剂，按照质量百分比计，所述的外加剂由聚羧酸减水剂、聚醚消泡剂、增稠剂以及水组成。本发明提供的外加剂具有改善混凝土的和易性、粘聚性、保水性、减少坍落度经时损失等工作性方面的作用；这种外加剂母液可以使混凝土保坍性能良好，强度高于普通混凝土；该外加剂具有调节混凝土的粘度，使新拌混凝土具有良好的体系稳定性，减少了因新拌混凝土体系稳定性差，而导致塌料，挂浆等现象，改善混凝土表面色差和混凝土的外观；在保证机制砂管桩混凝土易施工、强度不降低的前提下，减少混凝土胶材用量5％～10％和抑制机制砂管桩混凝土拌和物塌料挂浆。
Modified additive suitable for machine-made sand pipe pile concrete
The invention provides a modified additive suitable for machine-made sand pipe pile concrete, which is composed of the following components in percentage by mass: a polycarboxylate superplasticizer, apolyether defoamer, a thickener and water. The modified additive provided by the invention has the effects of improving workability such as workability, cohesiveness and water retention of concrete,reducing slump time loss and the like; an additive mother liquor can enable concrete to be good in slump retaining performance, and the strength is higher than that of common concrete; the modified additive can adjust the viscosity of concrete, so that the fresh concrete has good system stability, the phenomena of material collapse, slurry hanging and the like caused by poor system stability of the fresh concrete are reduced, and the surface color difference of the concrete and the appearance of the concrete are improved; on the premise that it is guaranteed that machine-made sand pipe pile concrete is easy to construct and the strength is not reduced, the using amount of concrete glue materials is reduced by 5%-10%, and machine-made sand pipe pile concrete mixtures are prevented from collapsing and hanging slurry.
本发明提供一种适用于机制砂管桩混凝土的改性外加剂，按照质量百分比计，所述的外加剂由聚羧酸减水剂、聚醚消泡剂、增稠剂以及水组成。本发明提供的外加剂具有改善混凝土的和易性、粘聚性、保水性、减少坍落度经时损失等工作性方面的作用；这种外加剂母液可以使混凝土保坍性能良好，强度高于普通混凝土；该外加剂具有调节混凝土的粘度，使新拌混凝土具有良好的体系稳定性，减少了因新拌混凝土体系稳定性差，而导致塌料，挂浆等现象，改善混凝土表面色差和混凝土的外观；在保证机制砂管桩混凝土易施工、强度不降低的前提下，减少混凝土胶材用量5％～10％和抑制机制砂管桩混凝土拌和物塌料挂浆。
Modified additive suitable for machine-made sand pipe pile concrete
一种适用于机制砂管桩混凝土的改性外加剂
GAO WEIFENG (Autor:in) / SHEN PENGCHENG (Autor:in) / LIU PING (Autor:in) / SHEN ZHONGHUA (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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