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Author: L. A. Palmer Publisher: Forgotten Books ISBN: 9780265862308 Category : Technology & Engineering Languages : en Pages : 30
Book Description
Excerpt from Volume Changes in Brick Masonry Materials It is reasonable to assume that the tendency of a mortar to remain bonded under any and all conditions is greater, the smaller its volume changes, provided, of course, that the masonry unit to which it adheres undergoes little or no expansion or contraction. In other words, by reducing to the lowest possible minimum the differential volume changes in unit masonry the life of the bond should be increased. Increasing the life of the bond between mortar and units should help in part at least to reduce water penetration through the masonry. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: L. A. Palmer Publisher: Forgotten Books ISBN: 9780265862308 Category : Technology & Engineering Languages : en Pages : 30
Book Description
Excerpt from Volume Changes in Brick Masonry Materials It is reasonable to assume that the tendency of a mortar to remain bonded under any and all conditions is greater, the smaller its volume changes, provided, of course, that the masonry unit to which it adheres undergoes little or no expansion or contraction. In other words, by reducing to the lowest possible minimum the differential volume changes in unit masonry the life of the bond should be increased. Increasing the life of the bond between mortar and units should help in part at least to reduce water penetration through the masonry. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: JI. Davison Publisher: ISBN: Category : Air content Languages : en Pages : 11
Book Description
Scandinavian researchers have identified reduction of moisture content to 6 percent and sufficient prehardening as conditions under which mortar in masonry walls will withstand early freezing without damage. This paper reports the results of a study in which volume changes due to freezing were measured in mortars to assess these conclusions for Canadian masonry materials. Volume changes in mortar samples encased in a rubber balloon immersed in alcohol in a cylinder connected to a calibrated capillary were measured as the temperature was lowered through the freezing zone. The effect of variable moisture contents and setting times for a 1:1:6 cement-lime mortar and a 1:3 masonry-cement mortar were studied. It was found that freezing expansions of the order of 2 percent for cement-lime mortar control samples dropped sharply after a setting time of 4 h and virtually disappeared at 16 h. Expansions of 1.25 percent in masonry-cement control mortars decreased to negligible values after a setting time of 4 h. Reductions to 6 percent moisture content reduced freezing expansions to negligible values for both mortars, although problems were encountered in bringing moisture contents down to 6 percent. The possible application of the results to field conditions is discussed.
Author: L. A. Palmer
Author: L. A. Palmer
Author: L. A. Palmer
Author: United States. National Bureau of Standards
Author: 
Author: 
Author: United States. Bureau of Standards
Author: Cyrus C. Fishburn
Author: JI. Davison
Author: J. G. Borchelt
Author: United States. National Bureau of Standards