. Engineering and Contracting. Universal Damp-Proof Compound is used for damp proofingand not for waterproofing. Method of Making the Specimens and ofPerforming the Tests.—Materials sufficientfor two specimens were first weighed sand was spread out evenly on the mix-ing floor and upon this was placed the cementin a thin layer. Two men with shovels mixedthe sand and cement thoroughly to an evencolor when a crater was made in the centerwhich was filled with water, .\fter the waterwas absorbed the mass was turned severaltimes until the mortar was in the form of athick paste. The stone whi
. Engineering and Contracting. Universal Damp-Proof Compound is used for damp proofingand not for waterproofing. Method of Making the Specimens and ofPerforming the Tests.—Materials sufficientfor two specimens were first weighed sand was spread out evenly on the mix-ing floor and upon this was placed the cementin a thin layer. Two men with shovels mixedthe sand and cement thoroughly to an evencolor when a crater was made in the centerwhich was filled with water, .\fter the waterwas absorbed the mass was turned severaltimes until the mortar was in the form of athick paste. The stone which had previouslybeen dampened was now spread over the mor-tar and the whole turned by two men withshovels for five minutes, water being addedat times with a sprinkler. The consistencyof the concrete was such that it flowed readilyfrom a pile on the floor. A quantity of neatcement was now mixed with sufficient waterto form a thick paste. The 6-in. pipe was placed on the floor withflanged-end up and a loose fitting wood disk. ss ^a? Pipe Co/i/tecr/fjg w/rh Air Tan A- @ -Air \/a/ire B A ir Pesert^ir^ V</IFipe
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