Fresh concrete test data such as slump and air content can help indicate possible causes and guide the troubleshooting investigation. Was excess water added? Was the air content too high or too low? Need your concrete tested? Find concrete contractors near me.

Information about determining unit weight or density of fresh concrete in order to know the true volume of the concrete.

Learn how to test for probelms with hardened concrete, including flaking, scaling, cracking, discoloration and more. Discover how to perform a concrete strength test on hardened concrete.

Testing for concrete slump is a quick procedure that can be performed on the jobsite using relatively inexpensive, but specialized, equipment. For ready-mix concrete, the procedures for measuring slump are defined by ASTM C143 – Standard Test Method for Slump of Hydraulic-Cement Concrete .

2020年9月2日 · Concrete floor refinishing information for overlays, epoxies and other coatings. Surface profile and cleaning recommendations. Photos and information of equipment needs.

But if that’s not possible, there are several products and techniques you can use to help get old and new concrete to match. Always test your chosen method on a small, inconspicuous area first to make sure you achieve the desired effect. Concrete stains

Here is a brief description of each-more information can be found in the appropriate ASTM test method. Slump flow-Flowability is measured with the slump flow test, which has been standardized as ASTM C 1611, "Slump Flow of Self-Consolidating Concrete."

Methods for Measuring Moisture Control in Concrete, by Malcom Rode and Doug Wendler. ASTM-D-4263, Standard Test for Indicating Moisture in Concrete by the Plastic Sheet Method. Moisture Test Unit Rubber Manufacturers Association.

2021年2月12日 · F-numbers were developed in the 1980s to provide a systematic, quantitative way to indicate the flatness and levelness of a concrete floor. The higher the F-number, the flatter or more level the floor.

The best method of concrete repair depends on the type of damage and whether your fixing a slab, driveway, pool deck, indoor floor, or other surface. Need Help? Contact nearby professional concrete contractors to do your repair work.