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C30 underwater concrete and preparation method thereof
The invention provides a C30 underwater concrete and a preparation method thereof. The C30 underwater concrete is prepared from following raw materials in parts by weight: 300 to 330 parts of cement,70 to 80 parts of fly ash and slag powder, 750 to 800 parts of sand, 950 to 1050 parts of broken stone, 150 to 200 parts of water, and 3.5 to 4.0 parts of a water reducer; wherein the weight ratio offly ash to slag powder is 1.0: 0.8-1.5. The preparation method comprise following steps: step one, mixing cement, fly ash, slag powder, water, and the water reducer according to a ratio to obtain mixed slurry; and step two, evenly mixing the mixed slurry obtained in the step one, sand, and broken stone to obtain the concrete. The invention provides a formula of an underground concrete. The concrete prepared according to the formula has a low bleeding property and large slump, and can meet the high requirements of underground application.
本发明提供了一种C30水下混凝土及其制备方法，按重量份数计包含以下原料制成：水泥300份～330份；粉煤灰和矿渣粉70份～80份；砂750份～800份；碎石950份～1050份；水150份～200份；减水剂3.50份～4.00份；其中，粉煤灰与矿渣粉的重量之比为1.0:0.8～1.5。制备方法包括以下步骤：步骤1、将水泥、粉煤灰、矿渣粉、水、减水剂按比例混合，得到混合浆液；步骤2：将步骤1得到的混合浆液、砂、碎石混合均匀，得到混凝土。本发明提供了一种适合的水下混凝土的配方，采用此配方制备的混凝土具有较低的泌水性和较大的坍落度，可以满足水下应用环境的高标准要求。
C30 underwater concrete and preparation method thereof
The invention provides a C30 underwater concrete and a preparation method thereof. The C30 underwater concrete is prepared from following raw materials in parts by weight: 300 to 330 parts of cement,70 to 80 parts of fly ash and slag powder, 750 to 800 parts of sand, 950 to 1050 parts of broken stone, 150 to 200 parts of water, and 3.5 to 4.0 parts of a water reducer; wherein the weight ratio offly ash to slag powder is 1.0: 0.8-1.5. The preparation method comprise following steps: step one, mixing cement, fly ash, slag powder, water, and the water reducer according to a ratio to obtain mixed slurry; and step two, evenly mixing the mixed slurry obtained in the step one, sand, and broken stone to obtain the concrete. The invention provides a formula of an underground concrete. The concrete prepared according to the formula has a low bleeding property and large slump, and can meet the high requirements of underground application.
本发明提供了一种C30水下混凝土及其制备方法，按重量份数计包含以下原料制成：水泥300份～330份；粉煤灰和矿渣粉70份～80份；砂750份～800份；碎石950份～1050份；水150份～200份；减水剂3.50份～4.00份；其中，粉煤灰与矿渣粉的重量之比为1.0:0.8～1.5。制备方法包括以下步骤：步骤1、将水泥、粉煤灰、矿渣粉、水、减水剂按比例混合，得到混合浆液；步骤2：将步骤1得到的混合浆液、砂、碎石混合均匀，得到混凝土。本发明提供了一种适合的水下混凝土的配方，采用此配方制备的混凝土具有较低的泌水性和较大的坍落度，可以满足水下应用环境的高标准要求。
C30 underwater concrete and preparation method thereof
一种C30水下混凝土及其制备方法
LIU HU (author) / GENG TAO (author) / LU ZHAOYIN (author) / SUN YAQI (author) / ZHANG XING (author) / HAN PENG (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Underwater shrinkage-free concrete and preparation method thereof
| European Patent Office | 2023