Download Free Tests Of Holding Strength Of Form Anchors Embedded In Concrete Placed And Cast At Reduced Temperatures Book in PDF and EPUB Free Download. You can read online Tests Of Holding Strength Of Form Anchors Embedded In Concrete Placed And Cast At Reduced Temperatures and write the review.

Tests were made to determine the shear resistance or holding strength of form anchors placed in concrete mixed and cured at reduced temperatures (45-50 F). Four mass (6-in. maximum size aggregate) concrete blocks were cast and cured in a temperature-controlled room, and six 18-in. and sixteen 24-in. form anchors were embedded in the blocks and tested at an age of 72 plus or minus 4 hours. One of the blocks contained a 30 per cent replacement (by solid volume) of the portland cement with fly ash. The results indicate that adequately designed anchors of either length will, under the test conditions used, provided resistance at 3 days age in excess of normally expected loads even though the concrete has a cement content as low as 2.5 bags per cu yd and is placed and cured at reduced temperatures. The use of fly ash as a replacement material reduced the holding power of the anchors appreciably, but not below a safe level. (Author).
"Directory of members, constitution and by-laws of the Society of American Military Engineers. 1935" inserted in v. 27.