LIGHTWEIGHT FOAMED CONCRETE COMPOSITION HAVING ANTIWASHOUT PROPERTY UNDERWATER

摘要

PURPOSE: An autoclaved lightweight concrete composition is provided to enhance strength, and to satisfy water permeability by using industrial by-products, a binder, fine aggregate, a super plasticizer, a thickening agent, a foam stabilizer, water, and a foaming group at an optimal ratio. CONSTITUTION: An autoclaved lightweight concrete composition comprises industrial by-products, a binder, fine aggregate, a super plasticizer, a thickening agent, water, and a foaming group. The industrial by-products are one or more selected from fly ash, blast furnace slag, paper manufacturing dust, and lime stone dust. The binder includes cement kiln dust, and cement or blast-furnace slag cement. 5-20 wt% of the cement kiln dust is used based on the weight of the cement or the blast-furnace slag cement. 10-25 wt% of the industrial by-products are used based on the weight of the binding material. The fine aggregate is used at 1-9:1 ratio based on about the total weight of the industrial by-products and the binder. The super plasticizer, the thickening agent, and the foaming agent are respectively used 0.1-1 wt% based on the total weight of the industrial by-products, the fine aggregate, and the binder.