Rebar yield Strength & Grout vs Concrete
Rebar yield Strength & Grout vs Concrete
(OP)
Hi Good Day Everyone,
I've got a few question. Hope you guys can help me out.
(1) Now in Singapore we are using Euro codes which means fy = 500 MPa. Before we used BS8110. Now the main contractor wants to use fy=460 MPa rebars for some reasons for a project designed to EC2. If so, I would like to know what are the implications?
(2)my second question is once there are cracks or concrete defects (non-structural), normally people will hack or trim the concrete & grout back. But since there is no aggregate in the grout, what will happen? They use the grout which has the same compressive strength as concrete.
Thanks
I've got a few question. Hope you guys can help me out.
(1) Now in Singapore we are using Euro codes which means fy = 500 MPa. Before we used BS8110. Now the main contractor wants to use fy=460 MPa rebars for some reasons for a project designed to EC2. If so, I would like to know what are the implications?
(2)my second question is once there are cracks or concrete defects (non-structural), normally people will hack or trim the concrete & grout back. But since there is no aggregate in the grout, what will happen? They use the grout which has the same compressive strength as concrete.
Thanks






RE: Rebar yield Strength & Grout vs Concrete
RE: Rebar yield Strength & Grout vs Concrete
Of course, the effect of exact loading conditions should always be evaluated.
RE: Rebar yield Strength & Grout vs Concrete
Standard bars are 500, but any strength bar within that range can be used. If the bar strength is 460, you will need about 500/460 more reinforcement.
RE: Rebar yield Strength & Grout vs Concrete
Thanks for your info. I was just wondering if there are any figures or specifications in EC2 that derived based on 500 MPa. Since EC2 does specify the steel strength range 400-600, then that should be alright & of course more number of reinforcement.
jike,
Thanks. Shear is what I was thinking too.
Allgoodnamestaken,
Thanks. The reason is contractor has got stock piles of 460 MPa rebar.
RE: Rebar yield Strength & Grout vs Concrete