When compressive strength tests of laboratory-cured cylinders fail to meet the specified acceptance criteria, core tests are commonly used to verify the strength and to obtain acceptance of the ...

Results that are obtained from concrete specimens during laying of concrete may not actually represent the concrete strength in the structure. In situ NDT (non-destructive testing) at several ...

Although failure of material is not the only reason for bridge failures, it is a vital step for choosing the correct materials, the analysis of bridge design, and construction testing. Bridge members ...

Purdue University professor Luna Lu, at left, and students in her lab made the discoveries and conducted the experiments that have led to the development of a promising new concrete strength testing ...

In the summer of 1981 a friend called me to ask if I would be interested in moonlighting to help him install floor sealer for a company in California. Even though I worked 18 hours that day, I decided ...

Drexel University engineers have shown that a concrete mix designed to gently warm itself in cold weather can cut damaging freeze-thaw cycles outdoors, pointing to longer-lasting pavements for cold ...