LIGHTWEIGHT INFILLING MORTAR COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a lightweight infilling mortar composition having excellent fillability, capable of being integrated with an existing member made of steel by being filled into the inside space of a hollow member such as a steel plate deck U rib as reinforcement for a steel plate deck and eliminating unfilled parts caused by air reservoirs as possible, and a lightweight infilling mortar.SOLUTION: Provided is a lightweight infilling mortar composition comprising cement and a lightweight aggregate. The lightweight infilling mortar composition is characterized in that flow value (no fall motion) after the removal of flow cones using flow cones prescribed in a flow test in JIS R 5201 {a physical test method for cement} 11 is 125 to 185 mm, and also, flow-down time in {a fluidization test method (plan) for infilling mortar} in the Civil Engineering Standards JSCE-F541-2010 cannot be measured by the clogging of the mortar. Also provided is a lightweight infilling mortar using the same.