Kajian Eksperimental Material dan Elemen Dinding Beton Beragregat Kasar Styrofoam dengan Lapisan Coating

Abstract

The concrete material is a type of material that is widely used in building construction. For the purposes of the non-structural, the use of normal concrete causes dead load due to non-structural concrete elements are quite large, because of that to reduce the weight of the non-structural concrete lightweight concrete is used with coarse aggregate of ALWA material, one type of that is styrofoam. From the research that has been done by previous researchers with the concrete with coarse aggregate styrofoam, it is known that the quality of the concrete decrease with the addition of the percentage of the aggregate of Styrofoam in the concrete, this is due to styrofoam as the building blocks of concrete are too weak, so in this study coarse aggregate styrofoam do retrofitting of the coating by using a cement paste, fly ash and water (ALWA styrofoam). Experiment is carried out with Styrofoam granules coated with coating with maximum size of the coating is 2 centimeters is used as coarse aggregate with the ratio of cement water are 0.5, 0.6, 0.7 and 0.8 with a targeted strength of 15 Mpa. The results of the test show that the weight of the concrete ALWA styrofoam 25% -30% lower than normal concrete, the concrete compressive strength increases with decreasing ALWA styrofoam cement water factor .As non-structural wall use/ partition, the results of the analysis show of the structure as a non-structural walls, the collapse pattern of charger wall portal ALWA styrofoam concrete panel begins with the destruction of the corner area and then proceed with the destruction of the bottom of portal column.

Keywords

• Concrete
• styrofoam ALWA