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Machine-made sand concrete for prefabricating immersed tube and winter construction method of machine-made sand concrete
The invention discloses a winter construction method of machine-made sand concrete for prefabricating an immersed tube, which comprises the following steps of: stirring concrete; wherein the temperature of the cement is controlled to be 5-45 DEG C, the temperature of the fly ash is controlled to be 5-30 DEG C, the temperature of the slag powder is controlled to be 5-45 DEG C, the temperature of the limestone powder is controlled to be-5-15 DEG C, the temperature of the gravel is controlled to be-5-15 DEG C, the temperature of the machine-made sand is controlled to be-5-15 DEG C, the temperature of the water reducing agent and the air entraining agent is controlled to be 10-20 DEG C, and the temperature of the mixing water is controlled to be 40-50 DEG C; and the prefabricated concrete immersed tube is poured, and finally curing is conducted. The invention further discloses machine-made sand concrete for the prefabricated immersed tube. The invention provides machine-made sand concrete for prefabricating an immersed tube and a construction method thereof in winter. The machine-made sand concrete has the characteristics of high workability, high strength, good crack resistance, resistance to chlorine salt and freeze thawing, resistance to sulfate erosion and the like.
本发明公开了一种用于预制沉管的机制砂混凝土的冬季施工方法，包括以下步骤：搅拌混凝土，其中水泥温度控制在5℃～45℃、粉煤灰温度控制在5℃～30℃、矿渣粉温度控制在5℃～45℃、石灰石粉温度控制在‑5℃～15℃、碎石温度控制在‑5℃～15℃、机制砂温度控制在‑5℃～15℃、减水剂与引气剂温度控制在10℃～20℃、拌合水温度控制在40℃～50℃；再将预制混凝土沉管浇筑，最后进行养护。本发明还公开了一种用于预制沉管的机制砂混凝土。本发明提供一种用于预制沉管的机制砂混凝土及其冬季施工方法，具有高工作性、高强度、良好抗裂性能、能抵抗氯盐+冻融双因素作用、抗硫酸盐侵蚀等特征。
Machine-made sand concrete for prefabricating immersed tube and winter construction method of machine-made sand concrete
The invention discloses a winter construction method of machine-made sand concrete for prefabricating an immersed tube, which comprises the following steps of: stirring concrete; wherein the temperature of the cement is controlled to be 5-45 DEG C, the temperature of the fly ash is controlled to be 5-30 DEG C, the temperature of the slag powder is controlled to be 5-45 DEG C, the temperature of the limestone powder is controlled to be-5-15 DEG C, the temperature of the gravel is controlled to be-5-15 DEG C, the temperature of the machine-made sand is controlled to be-5-15 DEG C, the temperature of the water reducing agent and the air entraining agent is controlled to be 10-20 DEG C, and the temperature of the mixing water is controlled to be 40-50 DEG C; and the prefabricated concrete immersed tube is poured, and finally curing is conducted. The invention further discloses machine-made sand concrete for the prefabricated immersed tube. The invention provides machine-made sand concrete for prefabricating an immersed tube and a construction method thereof in winter. The machine-made sand concrete has the characteristics of high workability, high strength, good crack resistance, resistance to chlorine salt and freeze thawing, resistance to sulfate erosion and the like.
本发明公开了一种用于预制沉管的机制砂混凝土的冬季施工方法，包括以下步骤：搅拌混凝土，其中水泥温度控制在5℃～45℃、粉煤灰温度控制在5℃～30℃、矿渣粉温度控制在5℃～45℃、石灰石粉温度控制在‑5℃～15℃、碎石温度控制在‑5℃～15℃、机制砂温度控制在‑5℃～15℃、减水剂与引气剂温度控制在10℃～20℃、拌合水温度控制在40℃～50℃；再将预制混凝土沉管浇筑，最后进行养护。本发明还公开了一种用于预制沉管的机制砂混凝土。本发明提供一种用于预制沉管的机制砂混凝土及其冬季施工方法，具有高工作性、高强度、良好抗裂性能、能抵抗氯盐+冻融双因素作用、抗硫酸盐侵蚀等特征。
Machine-made sand concrete for prefabricating immersed tube and winter construction method of machine-made sand concrete
一种用于预制沉管的机制砂混凝土及其冬季施工方法
LI CHAO (author) / HU WENGANG (author) / XU YAN (author) / LIU XING (author) / XU XIAOHUA (author) / LI JIANYE (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
B28C
Tonaufbereitung
,
PREPARING CLAY
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
E02D
FOUNDATIONS
,
Gründungen
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