新材料・新工法（材料）(2)

[V-89] Basic research on strength development with solids of industrial by-products origin

Minoru Hata¹, Katsumi Sugimoto², Etsuro Hayashi², Shingo Miyazawa³, 〇Hideki Igawa¹ (1.Nipponhume Corporation, 2.Tokyo Metropolitan Sewerage Service Corporation, 3.Ashikaga University)

Keywords:fly ash, fine blast furnace slag powder, size-controlled ash, compressive strength, high strength, sewerage pipes

The purpose of this study was to develop highly durable sewerage pipes by using solids from industrial by-products such as fly ash and fine blast furnace slag powder, and for which research was conducted to investigate the strength
development with such solids.
As a result, it was learned that the unifying of W/B was not appropriate for comparing the various properties of the solids and cement concrete.
Further, when the unit cementitious material content was 500kg/m3, compressive strength(28 day age) of about 65N/mm2 was obtained with W/B of 24%, and for 600kg/m3, about 85N/mm2 was obtained with W/B of 19%.