Figure 13. Bond stress of normal concrete and concrete containing different percentage of coconut shell aggregates at 7 and 28 days age

From

Mechanical and Bond Properties of Lightweight Concrete Incorporating Coconut Shell as Coarse Aggregate

Ismail Saifullah, Md. Mahfuzur Rahman, Abdul Halim, Md. Rafiue Islam

American Journal of Civil Engineering and Architecture. 2019, 7(1), 38-46 doi:10.12691/ajcea-7-1-5