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Action of the Salts in Alkali Water and Sea Water on Cements Volume a -A - 12-20 (Paperback) Loot Price: R270
Discovery Miles 2 700
Action of the Salts in Alkali Water and Sea Water on Cements Volume a -A - 12-20 (Paperback): Phaon Hilborn Bates

Action of the Salts in Alkali Water and Sea Water on Cements Volume a -A - 12-20 (Paperback)

Phaon Hilborn Bates

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Loot Price R270 Discovery Miles 2 700

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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. 1913 Excerpt: ...The ratios of the constituent materials of the mortars were assumed according to weight measure. (6) CONSISTENCY The normal consistency was predetermined with a Vicat needle for the neat cements, and for Portland cement sand mortars the water equivalent as recommended by the committee on uniform tests of the American Society of Civil Engineers was used. The water required for sand mortars made with natural, slag, or other special cements was judged by eye and the same percentage was used throughout for mixing batches of the same mortar. (e) MIXING Ten briquettes were molded from one batch of material. If a mortar, the sand was first weighed and spread out onto the plateglass-top mixing table, and the cement was weighed and spread evenly on top, after which the operator, wearing rubber gloves, mixed the materials thoroughly, turning them with a trowel and with his hands. After this dry mixing the materials were spread out to about a 2 or 3 inch depth, a crater formed in the middle, the water poured into the crater, and the dry material on the outer edge was turned into the crater with a trowel. After the water was absorbed the materials were kneaded for about two minutes. (Z) MOLDING The briquettes were molded in standard three or five gang tension briquette molds. The material was pressed into place by the thumbs of the operator, the mold being turned and both surfaces compacted and troweled. (c) STORAGE All test pieces were placed in a moist closet for the first 24 hours after molding, after which the molds were removed. Upon removing the molds all neat cement briquettes were marked with the test number and "gang" number, so that briquettes from the same gang could be identified. Ten gangs, or 50 briquettes (in some cases only 30 briquettes), wer...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: May 2012
First published: May 2012
Authors: Phaon Hilborn Bates
Dimensions: 246 x 189 x 2mm (L x W x T)
Format: Paperback - Trade
Pages: 32
ISBN-13: 978-1-231-29115-3
Categories: Books
LSN: 1-231-29115-X
Barcode: 9781231291153

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