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Engelhard公司开发出一种白色粉末状火山灰外加剂,可生产高强、低渗透率砂浆、水泥浆和混凝土.产品中含有的成分可减少隘流、降低收缩、具有抗化学侵蚀性和抗碱-硅反应等性质.本产品适用于普通波特兰水泥,并与其他工业副产品矿物质添加剂不同.工艺控制可使产品和易性、表观及其他性能稳定.本产品为白色,适于建筑上应用.经过一年研究,如果外加剂为粉末状,混凝土性能优于非火山质混凝土,可与硅灰水泥浆混凝土媲美.已对样品进行抗压强度、抗折强度、弹性模量、干燥收缩、气孔分析、冻融耐久性、塑性等方面测试.
Engelhard developed a white powdered pozzolanic admixture to produce high-strength, low-permeability mortars, grouts, and concrete. The products contain ingredients that reduce turbulence, reduce shrinkage, are chemically resistant, and resist alkali-silicon. Reaction and other properties. This product is suitable for ordinary Portland cement, and it is different from other industrial by-product mineral additives. Process control can make the product easy to be stable, apparent and other properties. This product is white, suitable for architectural applications After one year of research, if the admixture is powdery, the concrete performance is better than that of non-volcanic concrete, which is comparable to that of silica-cement cement mortar. The sample has been subjected to compressive strength, flexural strength, elastic modulus, drying shrinkage, Pore analysis, freeze-thaw durability, plasticity testing.