This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...of the Tests of Metals, etc., which show that the mortar is the governing factor. The brick piers were 12 inches square and 8 feet high, and the crushing strengths varied from a few hundred pounds per square inch for common brick laid in lime mortar to nearly 5,000 pounds per square inch for hard brick laid in neat ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...of the Tests of Metals, etc., which show that the mortar is the governing factor. The brick piers were 12 inches square and 8 feet high, and the crushing strengths varied from a few hundred pounds per square inch for common brick laid in lime mortar to nearly 5,000 pounds per square inch for hard brick laid in neat cement. The following safe compressive strengths for brick-work are given in the American Civil Engineers' Pocket Book, Mansfield Merriman, Editor-in-Chief. COMMON BRICK HAVING A COMPRESSIVE STRENGTH OF 1,800 POUNDS I PER SQUARE INCH When laid in Portland cement mortar 175 lbs. per sq. in. When laid in natural cement mortar 150" "" When laid in lime and cement mortar 125" "" When laid in lime mortar 100" "" SELECT HARD COMMON BRICK HAVING A COMPRESSIVE STRENGTH OP 2,500 POUNDS PER SQUARE INCH When laid in 1: 3 Portland cement mortar 200 lbs. per sq. in. When laid in 1 Portland cement, 1 lime paste, and 3 of sand mortar 175" "" Paving brick laid in 1: 3 Portland cement mortar..350" "" Lintels Supporting Brick Masonry.--The actual load on a lintel is very uncertain. If the masonry is considered to act as a fluid, then the load is the weight of all of the masonry above the lintel, including such loads as may be transmitted to the wall from floors, etc. While this assumption is on the side of safety, it undoubtedly leads to lintels very much heavier than necessary. The more usual assumption is to consider the weight of a triangle of masonry which has for its base the span of the lintel and its side making an angle of 45 to 60 with the base. This assumption may also be questioned, but for ordinary openings it is usually safe. Efflorescence.--The white efflorescence often seen o...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.