Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater foundation bagged concrete and preparation method and application thereof
The invention discloses underwater foundation anti-scouring bagged concrete and a preparation method and application thereof. Each cubic meter of concrete is prepared from the following raw material components: 200-380kg of Portland cement, 710-815kg of fine aggregate, 1000-1200kg of coarse aggregate, 160-185kg of water, 0.5-1.0 kg of polypropylene fiber, 30-70g of a first admixture and 60-150g ofa second admixture. The preparation method comprises the following steps of: weighing the raw materials according to the mixing ratio of the bagged concrete; uniformly stirring and mixing the raw materials by adopting a centralized stirrer to obtain concrete; testing the slump of the concrete and controlling the slump to be 50-100 mm; putting the mixed concrete into a geotextile bag made of plastic flat filament woven geotextile; and sealing the above geotextile bag. According to the underwater foundation bagged concrete, vibration is not needed, the compressive strength is larger than 10.0 MPa after 7 days of underwater hardening, the compressive strength is larger than 15.0 MPa after 28 days of underwater hardening, and the anti-scouring requirement of an underwater foundation is met.
本申请公开了一种水下基础抗冲刷袋装混凝土、制备方法及应用，每立方米混凝土的原材料包括以下组分：硅酸盐水泥200～380kg，细骨料710～815kg，粗骨料1000～1200kg，水160～185kg，聚丙烯纤维0.5～1.0kg，第一外加剂30～70g，第二外加剂60～150g。该制备方法，包括如下步骤：按照袋装混凝土配合比称取原材料；将上述原材料采用集中搅拌机搅拌混合均匀，获得混凝土；测试混凝土坍落度，该坍落度控制在50mm‑100mm；将拌制的混凝土装入塑料扁丝编织土工布制作的土工布袋中；将上述土工布袋封口。本申请水下基础袋装混凝土，无需振捣，在水下硬化7天抗压强度大于10.0MPa，28天抗压强度大于15.0MPa，满足水下基础抗冲刷的要求。
Underwater foundation bagged concrete and preparation method and application thereof
The invention discloses underwater foundation anti-scouring bagged concrete and a preparation method and application thereof. Each cubic meter of concrete is prepared from the following raw material components: 200-380kg of Portland cement, 710-815kg of fine aggregate, 1000-1200kg of coarse aggregate, 160-185kg of water, 0.5-1.0 kg of polypropylene fiber, 30-70g of a first admixture and 60-150g ofa second admixture. The preparation method comprises the following steps of: weighing the raw materials according to the mixing ratio of the bagged concrete; uniformly stirring and mixing the raw materials by adopting a centralized stirrer to obtain concrete; testing the slump of the concrete and controlling the slump to be 50-100 mm; putting the mixed concrete into a geotextile bag made of plastic flat filament woven geotextile; and sealing the above geotextile bag. According to the underwater foundation bagged concrete, vibration is not needed, the compressive strength is larger than 10.0 MPa after 7 days of underwater hardening, the compressive strength is larger than 15.0 MPa after 28 days of underwater hardening, and the anti-scouring requirement of an underwater foundation is met.
本申请公开了一种水下基础抗冲刷袋装混凝土、制备方法及应用，每立方米混凝土的原材料包括以下组分：硅酸盐水泥200～380kg，细骨料710～815kg，粗骨料1000～1200kg，水160～185kg，聚丙烯纤维0.5～1.0kg，第一外加剂30～70g，第二外加剂60～150g。该制备方法，包括如下步骤：按照袋装混凝土配合比称取原材料；将上述原材料采用集中搅拌机搅拌混合均匀，获得混凝土；测试混凝土坍落度，该坍落度控制在50mm‑100mm；将拌制的混凝土装入塑料扁丝编织土工布制作的土工布袋中；将上述土工布袋封口。本申请水下基础袋装混凝土，无需振捣，在水下硬化7天抗压强度大于10.0MPa，28天抗压强度大于15.0MPa，满足水下基础抗冲刷的要求。
Underwater foundation bagged concrete and preparation method and application thereof
一种水下基础袋装混凝土、制备方法及应用
WANG CHENGQI (Autor:in) / YANG LEI (Autor:in) / LIANG YUANBO (Autor:in) / ZHANG XIAOLE (Autor:in) / GUO YULIN (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
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