3,000 psi in 24 hours and 6,500 psi in 28 days Meets ASTM C387/C387M specifications for packaged, dry, combined materials for concrete and high strength mortar Available in 80 lbs. bags for under $10 ...

There have been test blocks of concrete with strengths of 60000 PSI. Regular concrete is usually at 3000-5000 PSI compressive strength. The Federal Highway Administration is studying how to make ...

fast-setting mix offers strength of more than 3,000 psi in just 1 hour and more than 7,000 psi at 28 days. Tackling repairs to spalled concrete surfaces, smoothing pop outs and replacing chipped ...

The hikes, ranging from $6 to $8 a cubic yard, depending on the grade and volume, now put the average going rate for a cubic yard of 3000 PSI concrete at about $75 to $78, industry sources say.

Over a three-week period, I tested the Greenworks 3000 PSI on dozens of outdoor surfaces, concrete, brick siding, cedar decking, automobiles, and even a grungy birdbath. Having used several gas ...

Determine a project’s correct load-carrying capacity. Sidewalk-grade concrete is usually rated at a crush strength of 3,000 psi. Custom mixes can achieve ratings in excess of 6,000 psi.

5. Sidewalk-grade concrete is usually rated at a crush strength of 3,000 psi. Custom mixes that might require special handling and finishing can achieve ratings in excess of 6,000 psi.

A few weeks back, the Air Force detonated out its most powerful bunker-buster yet. But a new Iranian super-strong concrete might make it almost useless before it reaches service. *"I designed a 2 ...