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青海省众多煤矿矿区普遍存在盐渍土,混凝土耐久性问题极为突出,格尔木盐湖地区最为典型。将镁水泥钢筋混凝土梁试件放置于察尔汗盐湖现场进行暴露试验,根据试件的钢筋的锈蚀情况、相对质量、相对动弹性模量及裂缝与变形来研究镁水泥钢筋混凝土在盐湖地区复杂条件作用下的耐久性问题。研究发现:镁水泥混凝土的抗腐蚀性能优越,变形性能与普通混凝土一致,且达克罗涂层有良好的防腐效果;镁水泥钢筋混凝土在盐湖地区耐久性研究,为地处盐渍土地区的煤矿矿区基础设施建设提供有力保障。
Many coal mines in Qinghai Province, widespread saline soil, concrete durability is extremely prominent, the most typical Golmud Salt Lake area. Magnesium concrete reinforced concrete beam specimens placed in Chaerhan Salt Lake site exposure test, according to the specimen of steel corrosion, relative mass, relative dynamic elastic modulus and cracks and deformation to study the magnesium concrete reinforced concrete in the Salt Lake region complex Durability under the conditions of the problem. The results show that the corrosion resistance of magnesium cement concrete is superior, the deformation performance is the same as that of ordinary concrete, and the dacromet coating has good anti-corrosion effect. The durability research of magnesium concrete reinforced cement in the Salt Lake is the best Coal mine infrastructure to provide strong protection.