| 摘要 |
<p>PURPOSE:To improve flowability, corrosion resistance and suitability to re- excavation by mixing water with a foaming agent and further mixing the mixture with a thickener, cement, fly ash and clinker ash. CONSTITUTION:Water is mixed with a foaming agent such as sulfuric ester of higher alcohol and further mixed with a thickener such as a cellulose ester- based thickener, cement such as common Portland cement, fly ash and clinker ash to obtain a self-hardening filling-back material having >=30cm table flow value stipulated by JIS.</p> |
