ISBN: 1236037006

Paperback, [EAN: 9781236037008], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], RareBooksClub.com, This historic book may have numerous typos and missing text. Purch… Plus…

Paperback, [EAN: 9781236037008], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], RareBooksClub.com, 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. 1821 Excerpt: ...with carbonic acid, or the common mortars, are made by mixing together slacked lime and sand. These mortars, aj; first solidify as hydrates, and are slowly converted into carbonate of lime by the action of the carbonic acid of the air. Mr. Tennant found that a mortar of this kind in three years and a quarter had regained 63 per cent. of-the quantity of carbonic acid gas which constitutes the definite proportion in carbonate of lime. The rubbish of mortar from houses owes its power to benefit lands principally to the carbonate of lime it contains, and the sand in it; and its state of cohesion renders it particularly fitted to improve clayey soils. The hardness of the mortar in very old buildings depends upon the perfect conversion of all its parts into carbonate of lime. The purest limestones are the best adapted for making this kind of mortar; the magnesian limestones make excellent water cements, but act with too little energy upon carbonic acid gas to make good common mortar. The Romans according to Pliny, made their best mortar a year before it was used: so that it was partially combined with carbonic acid gas before it was employed.. In burning lime there are some particular precautions required for the different kinds of limestones. In general, one bushel of coal is sufficient to make four or five bushels of lime. The magnesian limestone requires less fuel than the common limestone.' In all cases in which a limestone containing much aluminous 'or siliceous earth is burnt, great care should be taken' to prevent the fire from becoming too intense; for such lime easily vitrifies, in consequence of the affinity of lime for silica and alumina. And as in some places there are no other limestones than such as contain other earths, it is important to attend to..., 13579, General & Reference, 13570, Chemistry, 75, Science & Math, 1000, Subjects, 283155, Books, 491718, Chemistry, 468216, Science & Mathematics, 465600, New, Used & Rental Textbooks, 2349030011, Specialty Boutique, 283155, Books<

ISBN: 1236037006

[EAN: 9781236037008], Neubuch, [PU: RareBooksClub], SIR HUMPHRY DAVY,GENERAL AND REFERENCE,CHEMISTRY, This item is printed on demand. Paperback. 144 pages. Dimensions: 9.7in. x 7.4in. x 0… Plus…

[EAN: 9781236037008], Neubuch, [PU: RareBooksClub], SIR HUMPHRY DAVY,GENERAL AND REFERENCE,CHEMISTRY, This item is printed on demand. Paperback. 144 pages. Dimensions: 9.7in. x 7.4in. x 0.3in.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. 1821 Excerpt: . . . with carbonic acid, or the common mortars, are made by mixing together slacked lime and sand. These mortars, aj; first solidify as hydrates, and are slowly converted into carbonate of lime by the action of the carbonic acid of the air. Mr. Tennant found that a mortar of this kind in three years and a quarter had regained 63 per cent. of-the quantity of carbonic acid gas which constitutes the definite proportion in carbonate of lime. The rubbish of mortar from houses owes its power to benefit lands principally to the carbonate of lime it contains, and the sand in it; and its state of cohesion renders it particularly fitted to improve clayey soils. The hardness of the mortar in very old buildings depends upon the perfect conversion of all its parts into carbonate of lime. The purest limestones are the best adapted for making this kind of mortar; the magnesian limestones make excellent water cements, but act with too little energy upon carbonic acid gas to make good common mortar. The Romans according to Pliny, made their best mortar a year before it was used: so that it was partially combined with carbonic acid gas before it was employed. . In burning lime there are some particular precautions required for the different kinds of limestones. In general, one bushel of coal is sufficient to make four or five bushels of lime. The magnesian limestone requires less fuel than the common limestone. In all cases in which a limestone containing much aluminous or siliceous earth is burnt, great care should be taken to prevent the fire from becoming too intense; for such lime easily vitrifies, in consequence of the affinity of lime for silica and alumina. And as in some places there are no other limestones than such as contain other earths, it is important to attend to. . . This item ships from La Vergne,TN.<