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A platform for research: civil engineering, architecture and urbanism
Anti-cracking mass concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses anti-cracking mass concrete and a preparation method thereof. The mass concrete is prepared from the following raw materials: cement, fly ash, slag powder, water, fine aggregate, coarse aggregate, a water reducing agent, an internal curing agent, a retarder, an expanding agent and reinforcing fibers. The preparation method comprises the following steps: S1, at the temperature of 20-23 DEG C, mixing and stirring cement, fly ash, slag powder, water and a water reducing agent for 10-20 minutes at the rotating speed of 300-360 r/min to obtain a mixture; and S2, at the temperature of 20-23 DEG C, stirring the mixture and all the other raw materials at the rotating speed of 200-260 r/min for 10-15 minutes. The mass concrete provided by the invention has high cracking resistance, compressive strength and flexural strength.
本申请涉及混凝土领域，具体公开了一种抗裂性大体积混凝土及其制备方法。大体积混凝土包括以下原料：水泥、粉煤灰、矿渣粉、水、细骨料、粗骨料、减水剂、内养护剂、缓凝剂、膨胀剂、增强纤维；其制备方法为：S1.在20‑23℃的温度下，将水泥、粉煤灰、矿渣粉、水和减水剂在300‑360r/min的转速下混合搅拌10‑20min，得到混合料；S2.在20‑23℃的温度下，将混合料与其余所有原料在200‑260r/min的转速下，搅拌10‑15min。本申请的大体积混凝土具有较高的抗开裂性能、抗压强度和抗折强度。
Anti-cracking mass concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses anti-cracking mass concrete and a preparation method thereof. The mass concrete is prepared from the following raw materials: cement, fly ash, slag powder, water, fine aggregate, coarse aggregate, a water reducing agent, an internal curing agent, a retarder, an expanding agent and reinforcing fibers. The preparation method comprises the following steps: S1, at the temperature of 20-23 DEG C, mixing and stirring cement, fly ash, slag powder, water and a water reducing agent for 10-20 minutes at the rotating speed of 300-360 r/min to obtain a mixture; and S2, at the temperature of 20-23 DEG C, stirring the mixture and all the other raw materials at the rotating speed of 200-260 r/min for 10-15 minutes. The mass concrete provided by the invention has high cracking resistance, compressive strength and flexural strength.
本申请涉及混凝土领域，具体公开了一种抗裂性大体积混凝土及其制备方法。大体积混凝土包括以下原料：水泥、粉煤灰、矿渣粉、水、细骨料、粗骨料、减水剂、内养护剂、缓凝剂、膨胀剂、增强纤维；其制备方法为：S1.在20‑23℃的温度下，将水泥、粉煤灰、矿渣粉、水和减水剂在300‑360r/min的转速下混合搅拌10‑20min，得到混合料；S2.在20‑23℃的温度下，将混合料与其余所有原料在200‑260r/min的转速下，搅拌10‑15min。本申请的大体积混凝土具有较高的抗开裂性能、抗压强度和抗折强度。
Anti-cracking mass concrete and preparation method thereof
一种抗裂性大体积混凝土及其制备方法
ZHANG QUANGUI (author)
2021-04-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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