The effect of the amount of binder materials on the drying shrinkage of autoclaved aerated concrete

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It is significant to reduce possible earthquake loads acting on the structures that building materails should be lightweight and strong due to earthquakes by employing permanently in minds in Turkey. In this regard, the neccesity of high performance materials has increased in terms of durability that the materials should be more lightweight, stronger and higher thermal insulation than other building materials. Nowadays, the production of autoclaved aerated concrete can be made with the use of binding material in different proportions. The success of the application of autoclaved aerated concrete (time-dependent formation of cracks in plaster and wall strength is different from design strength) is attached to drying shrinkage values should be as low as possible. There are a lot of parameters which effect to provide lower drying shrinkage values, a good process control and the recipe is applied to autoclaved aerated concrete.In this study, it was investigated the effect of the amount of binder materials such as lime and cement on the drying shrinkage of autoclaved aerated concrete with different humidity conditions. For this reason, binder content was determined for lime in the range of 25%-30% and in the range of 7%-10% for cement in the production of autoclaved aerated concrete. The test results indicated that drying shrinkage values obtained lower than 0.5mm/m which standard value for drying shrinkage of autoclaved aerated concrete and the increase of the amount of lime and cement as binder materials in the production of of autoclaved aerated concrete has increased drying shrinkage of that materials.

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Autoclaved Aerated Concrete , Drying Shrinkage , Humidity Ratio , Cement , Lime

Erciyes University Journal Of The Institute Of Science an‎d Technology

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Erciyes University Journal Of The Institute Of Science an‎d Technology