Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Medium-heat Portland cement-based anti-radiation mass concrete and preparation method thereof
The invention discloses moderate-heat Portland cement-based anti-radiation mass concrete and a preparation method thereof. The prepared moderate-heat Portland cement-based anti-radiation mass concrete is low in hydration heat, free of shrinkage, excellent in construction performance, low in cost and good in performance, and the volume weight representative value of the anti-radiation concrete is larger than or equal to 2355kg/m < 3 >; when in use, the construction performance of concrete is better, slurry and aggregate flow together without segregation and bleeding, the slump after 2 hours is about 200 mm, the wet volume weight is about 2420 kg/m < 3 >, the gas content is about 2.8%, the initial setting time is 13-16 hours, the final setting time is 15-20 hours, and fresh mixed concrete can ensure normal pouring of large-volume concrete; the dry bulk density is about 2370 kg/m < 3 >, and the radiation-proof effect is effectively guaranteed; the adiabatic temperature rise of the mass concrete is about 31 DEG C, the shrinkage compensation capability is excellent, and the mass concrete has better temperature cracking resistance.
本发明公开一种中热硅酸盐水泥基防辐射大体积混凝土及其制备方法，制备得到的中热硅酸盐水泥基防辐射大体积混凝土水化热低、无收缩、施工性能优异、成本低、性能好，防辐射混凝土容重代表值≥2355kg/m3；使用时，混凝土施工性能较好，浆体与骨料一起流动，不离析、不泌水，2h后坍落度在200mm左右，湿容重在2420kg/m3左右，含气量2.8％左右，初凝时间在13‑16h，终凝时间在15‑20h，新拌混凝土可以保证大体积混凝土正常浇筑；干容重在2370kg/m3左右，有效保证防辐射效果；大体积混凝土的绝热温升在31℃左右，补偿收缩能力优异，具有较好的抗温度开裂能力。
Medium-heat Portland cement-based anti-radiation mass concrete and preparation method thereof
The invention discloses moderate-heat Portland cement-based anti-radiation mass concrete and a preparation method thereof. The prepared moderate-heat Portland cement-based anti-radiation mass concrete is low in hydration heat, free of shrinkage, excellent in construction performance, low in cost and good in performance, and the volume weight representative value of the anti-radiation concrete is larger than or equal to 2355kg/m < 3 >; when in use, the construction performance of concrete is better, slurry and aggregate flow together without segregation and bleeding, the slump after 2 hours is about 200 mm, the wet volume weight is about 2420 kg/m < 3 >, the gas content is about 2.8%, the initial setting time is 13-16 hours, the final setting time is 15-20 hours, and fresh mixed concrete can ensure normal pouring of large-volume concrete; the dry bulk density is about 2370 kg/m < 3 >, and the radiation-proof effect is effectively guaranteed; the adiabatic temperature rise of the mass concrete is about 31 DEG C, the shrinkage compensation capability is excellent, and the mass concrete has better temperature cracking resistance.
本发明公开一种中热硅酸盐水泥基防辐射大体积混凝土及其制备方法，制备得到的中热硅酸盐水泥基防辐射大体积混凝土水化热低、无收缩、施工性能优异、成本低、性能好，防辐射混凝土容重代表值≥2355kg/m3；使用时，混凝土施工性能较好，浆体与骨料一起流动，不离析、不泌水，2h后坍落度在200mm左右，湿容重在2420kg/m3左右，含气量2.8％左右，初凝时间在13‑16h，终凝时间在15‑20h，新拌混凝土可以保证大体积混凝土正常浇筑；干容重在2370kg/m3左右，有效保证防辐射效果；大体积混凝土的绝热温升在31℃左右，补偿收缩能力优异，具有较好的抗温度开裂能力。
Medium-heat Portland cement-based anti-radiation mass concrete and preparation method thereof
一种中热硅酸盐水泥基防辐射大体积混凝土及其制备方法
MA QUANLI (Autor:in) / WANG LONG (Autor:in) / ZHANG GUOYIN (Autor:in)
26.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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