C/W Ratio for 1500, 2000, 2500 PSI Concrete
C/W Ratio for 1500, 2000, 2500 PSI Concrete
(OP)
Hello everyone, I am checking through my stuff but I can't find anywhere in my references I have that show W/C to Compressive strength relationship ranges for making concrete below 3,000 PSI. If someone happens to have these standards I would really appreciate it if someone could post up the table or the graph for C/W ratios for 1500, 2000, 2500 PSI Concretes.
Thanks!
Frank Perez
Thanks!
Frank Perez





RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
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The best source for W/C ratios versus strength is either trial batches (field or lab) or statistical evaluation of actual field test results utilizing compressive strength tests results and W/C ratios based on known material sources.
Also one should bear in mind that when dealing with W/C vs compressive strength relationships, the W/C ratio may be lowered due to durablity considerations.
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
Frank
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
In areas of the country where construction materials testing laboratories proportion concrete mix designs, ready mix companies work closely with labs, often trying to get the labs to utilize their standard performance mixes. Nontheless, I think it is a good idea for labs who design mixes to collaborate with engineering depts of ready mix companies.
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
In Canadian practice most structural concrete starts at 30 mPa (4500 psi). Even sidewalks are over 3000 psi.
If you Google ‘concrete mix design programs’ the first site after the paid advertisements is
http://www
w/c ratio varies with size of aggregate and you also have to allow for moisture present in the aggregate in batching your concrete.
Rick Kitson MBA P.Eng
Construction Project Management
From conception to completion
www.kitsonengineering.com
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
RDK: 1,500 PSI concrete is frequently used here for things like void filler/stabilizer and temporary structures that need to be broken easily. Also, Canada has 4 seasons and freezes, which is much harder on concrete structures than say a tropical country where it rains 280+ inches of rain per year (excellent hydration on exposed structures. Sidewalks here do well at around 2,500 PSI.
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete
PCA has a wealth of information and a phone call to your local rep might give you the answer you need
RE: C/W Ratio for 1500, 2000, 2500 PSI Concrete