The book The Disintegration of Building Stones in Egypt was written by author Egypt. Maṣlaḥat Al-Misāḥah Here you can read free online of The Disintegration of Building Stones in Egypt book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Disintegration of Building Stones in Egypt a good or bad book?
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Sliglit corrosion end pitting. 45 Zawiet Nasra * . . 0-30 0-24 ) Sodiiuii nitrate. Slight corrosion and pitting. 47 Batu-el-BaiLara f 0-39 24 Sodium carbonate. Very marked disintegration. Experiment Xo. 2. — During a period of tln-ee months another and similar exjjeriment was made. In those cases in which distilled \\^ater only A\'as used the stones were dense and not very porous, and at the cud of three months the water had not been able to mount to the to]j of the cube. At the level that tne ...■vNater reached, ^\'hich was about half-way up, there ^vas a slight efflorescence, but not the slightest sign of corrosion. AVhere sodium sulphate was used tlie stone also A\'as not \^x\ porous and a dense growth of crystals formed about half-way up the sides where the water had penetrated. After washing off the efflorescence no signs of disintegration were visible. In one case calcium sulphate was used with a fairly porous stone. In this instance there was a slight efflorescence at the top of the cube and a very slight disintegration at the top corners.
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