An experimental study on the bond properties of lap splices of recycled aggregate concrete half precast beams applied ultra high strength fiber reinforced concrete form

被引：0

作者：

机构：

[1] Morohashi, Noritaka

[2] Sakurada, Tomoyuki

[3] Komatsu, Hiroshi

[4] Fujimoto, Toshiaki

[5] Mitsuhashi, Hiromi

来源：

| 1600年 / Architectural Institute of Japan卷 / 78期

关键词：

Concrete beams and girders - Bond strength (materials) - High performance concrete - Precast concrete - Bending tests - Fiber reinforced materials - Fibers - Recycling - Reinforced concrete - Concrete aggregates;

D O I：

10.3130/aijs.78.2211

中图分类号：

学科分类号：

摘要：

The bond properties of recycled aggregate concrete half precast beams using ultra high strength fiber reinforced concrete form were studied. This study aimed to increase the scope of application of recycled aggregate concrete. The high fluidity recycled aggregate concrete with a medium-quality recycled coarse aggregate used as site placed concrete. The four-point bending tests were conducted on recycled aggregate concrete half precast beams. The results showed that the load carrying capacity of the half precast beams using the ultra high strength fiber reinforced concrete form was higher than monolithic beams. Thus, high concrete strength of fiber reinforced form can be effectively used for the bond splitting strength of lap splices. Furthermore, the bond splitting strength of lap splices of recycled aggregate concrete half precast beams was estimated from the past bond splitting strength equation considering the strength difference of form and recycled aggregate concrete.

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