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Physical effect of alkaline salts in cleaning preparations
Efficiency of cleaning preparations
Action of various chemical solutions on marble
1 other sections not shown
abrading abrasion acid age Individual tests alkaline salts ammonia ammonia water ammonium ammonium carbonate amount of spalling appearance applied appreciable amount bicarbonate Calcite carbonate and sodium cause cent soap chemical cleaning preparation containing color crushed quartz crystallizing action detergents determine different marbles discoloration dissolved effect efflorescence hard grits hard water Indicated change Individual tests Average injury interior marble iron stains layer load marble floors marble Test masonry Medium grained method Modulus of elasticity Modulus of rupture obtained occurred plaster of Paris polished marble pores porous poultice powder putty powder removed rinsing salt solutions samples scrubbing tests showed shown in Figure slab of marble soapstone grit soda sodium carbonate sodium chloride sodium citrate sodium perborate spalling specimens staining matter strain lines surface Table talc test on marble tion trade cleaning preparation trade preparations treatment trisodium phosphate usually veins vidual tests volcanic ash grits yellow