Vliv složení betonu na jeho přetvárné vlastnosti

Abstract

The trend now is concrete, easy to workability, ease of storage and compaction. From an economic and ecological aspects are popular, concrete, using recyclable materials, materials easy to transport and easily accessible. The problem may arise when designing structures where necessary according to the strength class of concrete, using tabular values indicative modulus of elasticity in compression of the standards. It´s values at different concrete composition, may not coincide with real values obtained when testing concrete properties in the same class. This work is focused on the impact of concrete components in it´s deformational characteristics. Examining the characteristics became modulus of elasticity. For testing of concrete were designed so that an important component varied: aggregates, water and aerating additive. Concretes were tested for compressive strength, and the dynamic and static modulus of elasticity in compression. The results showed that the modulus of the concrete varied and only one reached the value of the norm.