Lightweight foamed concrete for prefabricated house

This paper presents the result of a study on using protein foam agent to produce lightweight concrete for a prefabricated house. The cement sand ratio used in this study are two variations ratio of 2:1 and 1:2. While, the ratio of water-cement (w/c) are 0.5 and 0.4 with 25% foam by mass. The result show that the composition of cement sand ratio of 1:2 with w/c ratio of 0.5 result the optimum compressive strength. This optimum composition has a compressive strength of 25.2 MPa with density of 1822 kg/m3. After all, this optimum composition meets classification as a lightweight structural concrete and can be used as a structural element on prefabrication house.