Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack concrete and preparation process thereof
The invention relates to the technical field of concrete, and particularly discloses anti-crack concrete and a preparation process thereof. The anti-crack concrete is composed of the following raw materials: 180 to 240 parts of Portland cement, 50 to 70 parts of fly ash, 20 to 30 parts of slag, 800 to 850 parts of fine aggregate, 880 to 920 parts of coarse aggregate, 8 to 10 parts of an additive, 150 to 200 parts of water, 10 to 15 parts of silicon powder and 40 to 60 parts of a composite phase change material. The preparation process comprises the following steps: 1) mixing and stirring the raw materials to obtain an anti-crack concrete primary mixture; 2) compacting and forming the anti-crack concrete primary mixture to form an anti-crack concrete layer; 3), laying a plastic film on the surface of the anti-crack concrete layer, and moisturizing, curing and drying to obtain the anti-crack concrete. According to the anti-crack concrete, cement hydration heat can be stored through the composite phase change material, the probability that temperature cracks are generated due to the fact that the temperature difference between the inside and the outside of the concrete is large is reduced, and the anti-crack performance of the concrete is improved.
本申请涉及混凝土的技术领域，具体公开了一种抗裂混凝土及其制备工艺。一种抗裂混凝土，由包含以下原料组成：硅酸盐水泥180‑240份，粉煤灰50‑70份，矿渣20‑30份，细骨料800‑850份，粗骨料880‑920份，外加剂8‑10份，水150‑200份，硅粉10‑15份，复合相变材料40‑60份；其制备工艺包括如下步骤：1）将原料进行混合并搅拌，得到抗裂混凝土初混物；2）抗裂混凝土初混物密实成型形成抗裂混凝土层；3）在抗裂混凝土层表面铺设塑料薄膜，保湿养护干燥后获得抗裂混凝土。本申请通过复合相变材料可以对水泥水化热进行存储，减小了混凝土因内外温差较大而产生温度裂缝的几率，提高混凝土的抗裂性能。
Anti-crack concrete and preparation process thereof
The invention relates to the technical field of concrete, and particularly discloses anti-crack concrete and a preparation process thereof. The anti-crack concrete is composed of the following raw materials: 180 to 240 parts of Portland cement, 50 to 70 parts of fly ash, 20 to 30 parts of slag, 800 to 850 parts of fine aggregate, 880 to 920 parts of coarse aggregate, 8 to 10 parts of an additive, 150 to 200 parts of water, 10 to 15 parts of silicon powder and 40 to 60 parts of a composite phase change material. The preparation process comprises the following steps: 1) mixing and stirring the raw materials to obtain an anti-crack concrete primary mixture; 2) compacting and forming the anti-crack concrete primary mixture to form an anti-crack concrete layer; 3), laying a plastic film on the surface of the anti-crack concrete layer, and moisturizing, curing and drying to obtain the anti-crack concrete. According to the anti-crack concrete, cement hydration heat can be stored through the composite phase change material, the probability that temperature cracks are generated due to the fact that the temperature difference between the inside and the outside of the concrete is large is reduced, and the anti-crack performance of the concrete is improved.
本申请涉及混凝土的技术领域，具体公开了一种抗裂混凝土及其制备工艺。一种抗裂混凝土，由包含以下原料组成：硅酸盐水泥180‑240份，粉煤灰50‑70份，矿渣20‑30份，细骨料800‑850份，粗骨料880‑920份，外加剂8‑10份，水150‑200份，硅粉10‑15份，复合相变材料40‑60份；其制备工艺包括如下步骤：1）将原料进行混合并搅拌，得到抗裂混凝土初混物；2）抗裂混凝土初混物密实成型形成抗裂混凝土层；3）在抗裂混凝土层表面铺设塑料薄膜，保湿养护干燥后获得抗裂混凝土。本申请通过复合相变材料可以对水泥水化热进行存储，减小了混凝土因内外温差较大而产生温度裂缝的几率，提高混凝土的抗裂性能。
Anti-crack concrete and preparation process thereof
一种抗裂混凝土及其制备工艺
ZHANG JIE (Autor:in) / LI KUNMING (Autor:in) / YANG MING (Autor:in) / LIU DONGSONG (Autor:in) / LIU SHILUN (Autor:in)
20.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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