The impact of mineral micro filler additives on the properties of fine-grained concrete
In this paper, the influence of different types of fine ground mineral fillers. Additives introduced in the composition of fine-grained concrete. Selected effective filler based on the local opal-cristobalite of the flask. Set its optimal dosage. As a binder used Portland cement CEM I 42,5 R (Turkey). As the filler used local fine sand with a fineness modulus of Mк 1,12. As additives used opal-cristobalite of the flask, waste slag, ceramsite dust, ground quartz sand. The optimum number of flasks of 0.3 - 0.6 m.p. The use of the flask was increased about 2 times the strength of concrete in bending. The compressive strength increased by 40%.