Poorly mixed concrete may show sand streaks, low w/cm mortar coatings on aggregates and clustering of air voids. Large voids ... at and just below the finished surface. Inconsistencies in ...

"We saw that there were safety issues due to an uneven and rough surface, and then holes and voids in concrete create concerns for potential further deterioration." Concerns were relayed to ...

Uneven driveways are more than just an aesthetic concern. They pose risks to safety and can lead to more extensive damage ov ...

Obtain a representative concrete sample from the revolving drum ... of the mold 10 to 15 times with a rubber mallet to close the voids left by the tamping rod. Use an open hand for single use ...