Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrahigh-pressure long-distance pumping concrete and preparation method thereof
The invention discloses ultrahigh-pressure long-distance pumping concrete and a preparation method thereof, and belongs to the technical field of concrete, wherein the ultrahigh-pressure long-distancepumping concrete comnprises the following composition in parts by weight: 1183-1214 parts of a coarse aggregate, 624-743 parts of a fine aggregate, 500-550 parts of cement, 216-280 parts of water, 50-80.8 parts of fly ash, 15-16.5 parts of a pumping agent, 20-30 parts of silicon carbide powder, 55-60 parts of an expanding agent and 11-13 parts of an efficient retarding and water reducing agent, wherein the pumping agent comprises 320-328 parts of a sulfonated melamine efficient water reducing agent and 2-3.5 parts of hydroxypropyl methylcellulose. According to the ultrahigh-pressure long-distance pumping concrete and the preparation method thereof provided by the invention, the problems that a conveying pipe is easily blocked and the concrete is easy to separate and seep and the engineering quality and progress are influenced due to the fact that concrete is subjected to large resistance of a pumping pipe are solved, and the ultrahigh-pressure long-distance pumping concrete has the advantages of reducing the resistance to the concrete during pumping and being beneficial to ultra-long-distance pumping.
本发明公开了一种超高压长距离泵送混凝土及其制备方法，属于混凝土技术领域，包含以下重量份的组合物：粗骨料1183‑1214份，细骨料624‑743份，水泥500‑550，水216‑280份，粉煤灰50‑80.8份，泵送剂15‑16.5份，碳化硅粉末20‑30份,膨胀剂55‑60份，高效缓凝减水剂11‑13份,泵送剂包括磺化三聚氰胺高效减水剂320‑328份和羟丙甲纤维素2‑3.5份；本发明提供的超高压长距离泵送混凝土及其制备方法，解决了混凝土受到泵送管阻力较大，容易造成输送管堵塞和混凝土离析、沁水，影响工程质量和进度的问题，具有减小混凝土泵送时受到的阻力，有利于超长距离进行泵送的优点。
Ultrahigh-pressure long-distance pumping concrete and preparation method thereof
The invention discloses ultrahigh-pressure long-distance pumping concrete and a preparation method thereof, and belongs to the technical field of concrete, wherein the ultrahigh-pressure long-distancepumping concrete comnprises the following composition in parts by weight: 1183-1214 parts of a coarse aggregate, 624-743 parts of a fine aggregate, 500-550 parts of cement, 216-280 parts of water, 50-80.8 parts of fly ash, 15-16.5 parts of a pumping agent, 20-30 parts of silicon carbide powder, 55-60 parts of an expanding agent and 11-13 parts of an efficient retarding and water reducing agent, wherein the pumping agent comprises 320-328 parts of a sulfonated melamine efficient water reducing agent and 2-3.5 parts of hydroxypropyl methylcellulose. According to the ultrahigh-pressure long-distance pumping concrete and the preparation method thereof provided by the invention, the problems that a conveying pipe is easily blocked and the concrete is easy to separate and seep and the engineering quality and progress are influenced due to the fact that concrete is subjected to large resistance of a pumping pipe are solved, and the ultrahigh-pressure long-distance pumping concrete has the advantages of reducing the resistance to the concrete during pumping and being beneficial to ultra-long-distance pumping.
本发明公开了一种超高压长距离泵送混凝土及其制备方法，属于混凝土技术领域，包含以下重量份的组合物：粗骨料1183‑1214份，细骨料624‑743份，水泥500‑550，水216‑280份，粉煤灰50‑80.8份，泵送剂15‑16.5份，碳化硅粉末20‑30份,膨胀剂55‑60份，高效缓凝减水剂11‑13份,泵送剂包括磺化三聚氰胺高效减水剂320‑328份和羟丙甲纤维素2‑3.5份；本发明提供的超高压长距离泵送混凝土及其制备方法，解决了混凝土受到泵送管阻力较大，容易造成输送管堵塞和混凝土离析、沁水，影响工程质量和进度的问题，具有减小混凝土泵送时受到的阻力，有利于超长距离进行泵送的优点。
Ultrahigh-pressure long-distance pumping concrete and preparation method thereof
超高压长距离泵送混凝土及其制备方法
LI KAIQUAN (Autor:in) / DAI QINBO (Autor:in) / SUN CHAOHONG (Autor:in) / WAN WEI (Autor:in) / LI KAIYUN (Autor:in) / JIANG WEI (Autor:in) / LI SUYUAN (Autor:in) / HUANG QIYONG (Autor:in) / LI KAIPING (Autor:in) / LI LIANG (Autor:in)
22.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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