Recent content by HK2013

We have had this discussion in our office as well... Following.

SlideRuleEra - By our estimate, the cost difference would probably be on the order of 8% of the concrete material cost for the higher strength concrete. We have provided this information and the risks involved to our client along with our recommendation of 4500psi, air-entrained and will see...

I was thinking the same thing about the durability. Fresh water, we are planning on a cofferdam during construction.

Howdy folks! I was wondering if anyone had any advice on the required concrete properties for a slab on ground boat ramp. The ramp is going to be half submerged and in an area where yearly ice is possible. The way I read Table 19.3.1.1 and 19.3.2.1 in ACI 318-14, since the ramp will be exposed...