- Author
-
Petersen, P. H.
- Title
- Properties of a Porous Concrete of Cement and Uniforn-Sized Gravel.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
-
BMS 96
March 18, 1943
17 p.
- Keywords
-
gravel
|
concretes
|
cements
|
physical properties
- Abstract
- The physical properties of a porous concrete consisting solely of portland cement, water, and uniform-sized gravel were investigated. Each of three coarse aggregates, grits (No. 8 to No. 4), pea gravel (No. 4 to 3/8 inch), and 3/4-inch gravel (3/8 to 3/4 inch), was used, with 2 1/2 bags of cement per cubic yard in concrete tamped in place and 3 bags per cubic yard when no compacting was done. Walls, wallettes, beams, and bond pull-out specimens were tested, as well as 6- by 12-inch control cylinders. Compressive, transverse, shearing, and bond strengths are reported, as well as resistance to heat transfer, water penetration by capillarity, and rain penetration.