Influence of the dry and hot climate conditions on the technology of concrete works

The climate conditions of building site influence significantly on arrangement and technology of concrete works. This influence can be positive and negative. It is necessary to assess the climate conditions with further minimization of their negative impact and employment of their positive features. It helps to design the effective arrangement and technology of concrete works on the building site. The research is devoted to the assessment of influence of the dry and hot climate conditions on the arrangement and the technology of concrete works. The hot daytime temperature and the low air humidity characterize the dry and hot climate. Its positive feature is the possibility of employment of solar energy for thermal treatment of concrete. Its negative impact is the reduction of the period of the concrete mix delivery and placement, the intensive water evaporation from concrete construction and the progress of concrete shrinkage. The possibility of getting the project strength of concrete, curing without care in the conditions of dry and hot climate, is verified under the research. The layer concrete strength is researched to assess the negative impact of climate conditions in the depth of concrete constructions. The research results and methodology, as well as the information about concrete composition and the boundary conditions of the research are given in the article. The research results testify to necessity of starting care for concrete constructions immediately after the concrete mix placement in formworks in the conditions of dry and hot climate. (C) 2017 The Authors. Published by IASE.