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Steel slag-semi-dry desulfurization ash-based admixture for marine concrete and preparation method of steel slag-semi-dry desulfurization ash-based admixture
The invention discloses a steel slag-semi-dry desulfurization ash based admixture for marine concrete and a preparation method of the steel slag-semi-dry desulfurization ash based admixture. The steel slag-semi-dry desulfurization ash based admixture comprises the following components in parts by weight: 15.0-25.0 parts of steel slag micro powder, 4.0-6.0 parts of an alkaline composite reinforcing agent, 5.0-10.0 parts of semi-dry desulfurization ash, 10.0-15.0 parts of fly ash, 4.0-6.0 parts of desulfurization gypsum and 45.0-55.0 parts of mineral powder, the alkaline composite reinforcing agent is prepared from the following components in parts by weight: 30 to 45 parts of CaO, 41 to 46 parts of SO34, 2.5 to 6.5 parts of SiO2, 2 to 18 parts of Na2O, 1 to 3 parts of Al2O3, 0.4 to 0.8 part of MgO and 0.5 to 0.8 part of Fe2O3. According to the invention, the problems of easy cracking, insufficient early strength and the like after the semi-dry desulfurization ash, the steel slag and other components are added into the admixture can be solved, and the seawater erosion resistance of the concrete is improved.
海工混凝土用钢渣‑半干法脱硫灰基掺合料及其制备方法，包括下列按重量份计的组分：钢渣微粉15.0‑25.0份，碱性复合增强剂4.0‑6.0份，半干法脱硫灰5.0‑10.0份，粉煤灰10.0‑15.0份，脱硫石膏4.0‑6.0份，矿粉45.0‑55.0份；碱性复合增强剂中包括如下重量份数的成分：CaO 30‑45份、SO341‑46份、SiO22.5‑6.5份、Na2O 2‑18份、Al2O31‑3份、MgO 0.4‑0.8份、Fe2O30.5‑0.8份。本发明可解决掺合料中加入半干法脱硫灰、钢渣等组分后出现的容易开裂、早强性能不足等问题，提高混凝土的抵抗海水侵蚀能力。
Steel slag-semi-dry desulfurization ash-based admixture for marine concrete and preparation method of steel slag-semi-dry desulfurization ash-based admixture
The invention discloses a steel slag-semi-dry desulfurization ash based admixture for marine concrete and a preparation method of the steel slag-semi-dry desulfurization ash based admixture. The steel slag-semi-dry desulfurization ash based admixture comprises the following components in parts by weight: 15.0-25.0 parts of steel slag micro powder, 4.0-6.0 parts of an alkaline composite reinforcing agent, 5.0-10.0 parts of semi-dry desulfurization ash, 10.0-15.0 parts of fly ash, 4.0-6.0 parts of desulfurization gypsum and 45.0-55.0 parts of mineral powder, the alkaline composite reinforcing agent is prepared from the following components in parts by weight: 30 to 45 parts of CaO, 41 to 46 parts of SO34, 2.5 to 6.5 parts of SiO2, 2 to 18 parts of Na2O, 1 to 3 parts of Al2O3, 0.4 to 0.8 part of MgO and 0.5 to 0.8 part of Fe2O3. According to the invention, the problems of easy cracking, insufficient early strength and the like after the semi-dry desulfurization ash, the steel slag and other components are added into the admixture can be solved, and the seawater erosion resistance of the concrete is improved.
海工混凝土用钢渣‑半干法脱硫灰基掺合料及其制备方法，包括下列按重量份计的组分：钢渣微粉15.0‑25.0份，碱性复合增强剂4.0‑6.0份，半干法脱硫灰5.0‑10.0份，粉煤灰10.0‑15.0份，脱硫石膏4.0‑6.0份，矿粉45.0‑55.0份；碱性复合增强剂中包括如下重量份数的成分：CaO 30‑45份、SO341‑46份、SiO22.5‑6.5份、Na2O 2‑18份、Al2O31‑3份、MgO 0.4‑0.8份、Fe2O30.5‑0.8份。本发明可解决掺合料中加入半干法脱硫灰、钢渣等组分后出现的容易开裂、早强性能不足等问题，提高混凝土的抵抗海水侵蚀能力。
Steel slag-semi-dry desulfurization ash-based admixture for marine concrete and preparation method of steel slag-semi-dry desulfurization ash-based admixture
海工混凝土用钢渣-半干法脱硫灰基掺合料及其制备方法
ZHENG YONGJIE (author) / HUANG YUANCHENG (author) / YE YANFEI (author) / ZHANG HAO (author) / LONG HONGMING (author) / YANG YU (author)
2024-09-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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