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根据库纳德森公式和混凝土破坏的三种模式,提高粗、细集料强度并达到最紧密堆积状态,提高水泥石与集料的粘接强度,采用“双掺(外加剂与掺合料)”技术,确保拌合料达到规定坍落度的前提下,尽可能降低水胶比等,是提高混凝土强度,节约水泥的基本途径。试验表明:利用光滑、高强、吸水率小。易于配制高流动性混凝土的卵石与质地坚硬、棱角坚固,利于形成镶嵌结构的碎石级配,以实现优势互补,可提高强度约15%,达到节灰、节水、节能的目的。
According to Kunnadsen formula and concrete destruction three modes, improve the coarse and fine aggregate strength and achieve the most close accumulation state, improve the bond strength of cement stone and aggregate, using “double admixture (admixture and admixture Material) ”technology, to ensure that the mixing material to achieve the provisions of the slump premise, as much as possible to reduce the water-cement ratio is to improve the concrete strength, the basic way to save the cement. Tests show that: the use of smooth, high strength, low water absorption. Easy to formulate high-mobility concrete pebbles and texture of hard, angular solid, conducive to the formation of mosaic structure gravel, in order to achieve complementary advantages, can increase the strength of about 15%, to ash, water, energy saving purposes.