QA on site.
QA on site.
(OP)
Hong Kong rail, Korean supermarket, Taiwan, Turkey, Greece, earthquakes and failures! Where are the quality assurance experts on concrete construction? I've spent many years on construction, and still the Architect, the builder, the workers cannot consistently reproduce high quality easily or with 99.999% confidence! It seems a pity to build every structure on concrete footings with poor QA during construction. How much does a petrochem pipe rack settle before the free spanning pipe is "stressed"? I'm studying "failures", or FMEA out of interest. Retempered concrete, stale concrete, incorrect delivery, poor placement methodology, inexperience, poor sampling, poor curing, excessive water, corrosion, alterred rebar placement, poor detailing or scheduling, green loading, incompatable tolerancing, etc.





RE: QA on site.
RE: QA on site.
RE: QA on site.
RE: QA on site.
Another point that was raised was the wages and level of knowledge of the QC inspectors in the field. Remember they are the eyes, ears and hands of the Engineer. If they do not know what to look at or for, if they are just there to 'slump, dump and skoot...' then that is all that you are going to get. Cheap ain't inexpensive!
As for Certification and Qualification, www.ACI-int.org, www.CRSI.org, www.NICET.org and www.WACEL.org offer certifications and even sometimes classes, but if the municipalities don't require certifications (Washington DC does NOT!!!) then anyone can be hired to fill the role of a QC inspector.
The owner should always provide QA even if the Contractor is assigned the responsability of providing the QC.