Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alkali-resistant aggregate reaction marine concrete and preparation method thereof
The invention provides alkali-resistant aggregate reaction marine concrete as well as a preparation method and application thereof. The alkali-resistant aggregate reaction marine concrete is prepared from 150 to 200 parts of cement, 250 to 300 parts of composite mineral admixture, 20 to 40 parts of rubber micro powder, 600 to 700 parts of sea sand, 930 to 1000 parts of gravel, 15 to 30 parts of high-efficiency water reducing agent and 240 to 320 parts of seawater, wherein the composite mineral admixture is formed by compounding fly ash, granulated blast furnace slag powder and silica fume. The mineral admixture is doped to inhibit alkali aggregate reaction, the rubber micro powder is doped to weaken damage generated by the alkali aggregate reaction, the service life of the marine concrete is prolonged through double guarantee, the mineral admixture is subjected to secondary hydration to improve the compactness of the concrete and effectively adsorb potassium and sodium ions, the admixture replaces cement with the same proportion, and the service life of the concrete is prolonged. The effect of alkali aggregate reaction is effectively inhibited; when the rubber micro powder is applied to concrete, the performance of the concrete is improved, the environmental pollution is reduced, and resources can be recycled.
本申请提供了一种抗碱骨料反应海工混凝土、制备方法及应用，包括：水泥150‑200份、复合矿物掺合料250‑300份、橡胶微粉20‑40份、海砂600‑700份、碎石930‑1000份、高效减水剂15‑30份和海水240‑320份；其中，复合矿物掺合料由粉煤灰、粒化高炉矿渣粉和硅灰复合而成。通过掺入矿物掺合料抑制碱骨料反应，掺入橡胶微粉对已发生碱骨料反应产生的破坏减弱，双重保障延长海工混凝土的使用寿命，矿物掺合料通过二次水化作用使混凝土密实度提高，有效吸附钾、钠离子，掺和料取代同等比例的水泥，有效抑制碱骨料反应的作用；橡胶微粉应用到混凝土中，提高混凝土的性能，减轻环境污染，使资源能重复利用。
Alkali-resistant aggregate reaction marine concrete and preparation method thereof
The invention provides alkali-resistant aggregate reaction marine concrete as well as a preparation method and application thereof. The alkali-resistant aggregate reaction marine concrete is prepared from 150 to 200 parts of cement, 250 to 300 parts of composite mineral admixture, 20 to 40 parts of rubber micro powder, 600 to 700 parts of sea sand, 930 to 1000 parts of gravel, 15 to 30 parts of high-efficiency water reducing agent and 240 to 320 parts of seawater, wherein the composite mineral admixture is formed by compounding fly ash, granulated blast furnace slag powder and silica fume. The mineral admixture is doped to inhibit alkali aggregate reaction, the rubber micro powder is doped to weaken damage generated by the alkali aggregate reaction, the service life of the marine concrete is prolonged through double guarantee, the mineral admixture is subjected to secondary hydration to improve the compactness of the concrete and effectively adsorb potassium and sodium ions, the admixture replaces cement with the same proportion, and the service life of the concrete is prolonged. The effect of alkali aggregate reaction is effectively inhibited; when the rubber micro powder is applied to concrete, the performance of the concrete is improved, the environmental pollution is reduced, and resources can be recycled.
本申请提供了一种抗碱骨料反应海工混凝土、制备方法及应用，包括：水泥150‑200份、复合矿物掺合料250‑300份、橡胶微粉20‑40份、海砂600‑700份、碎石930‑1000份、高效减水剂15‑30份和海水240‑320份；其中，复合矿物掺合料由粉煤灰、粒化高炉矿渣粉和硅灰复合而成。通过掺入矿物掺合料抑制碱骨料反应，掺入橡胶微粉对已发生碱骨料反应产生的破坏减弱，双重保障延长海工混凝土的使用寿命，矿物掺合料通过二次水化作用使混凝土密实度提高，有效吸附钾、钠离子，掺和料取代同等比例的水泥，有效抑制碱骨料反应的作用；橡胶微粉应用到混凝土中，提高混凝土的性能，减轻环境污染，使资源能重复利用。
Alkali-resistant aggregate reaction marine concrete and preparation method thereof
一种抗碱骨料反应海工混凝土及其制备方法
CAO HAILIN (Autor:in) / GUO SHUHUI (Autor:in) / WENG LUQIAN (Autor:in) / HOU SHUANGSHUANG (Autor:in)
06.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Alkali-aggregate reaction in concrete
Engineering Index Backfile | 1958
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