The article describes the results of theoretical and experimental studies to identify relationship between parameters steam structure thermal conductivity ashclaydite. correlation dependences coefficient ash-claydite on its stream have been established. analysis these works shows that lightweight concrete depends type porous aggregate, direction heat flow in relation layering concrete, average ...

Creep and shrinkage are such properties that will occur in concrete when they are under load and exposed to surrounding. Since this property will cause deformation which may decrease the design strength of the concrete, it is necessary to do have more knowledge on this phenomenon. So, we will study the effect of creep on 7 and 14 days of cured time of specimens which sealed or unsealed will be ...

By incorporating lightweight expanded polystyrene aggregate particles in a conventional highstrength concrete mixture, its density could be adjusted to any desired level. The adjusted density concrete can be expected to have reduced strength and stiffness the permeability of concrete would not be affected since the non-water absorbing polystyrene aggregate particles are dispersed randomly in a ...

This study reports the influence of different climatic ambient temperatures on thermal properties fiber-reinforced lightweight aggregate concrete (LWAC). Lightweight expanded clay aggregates (LECA) with steel (ST) and polypropylene fibers were used in mix proportions. The steady-state test was performed samples at oven-dry state measurement taken six 0 °C, 10 20 30 40 50 °C. results show a line...