Cement houses and how to build them. . ne inch in diameter andthe mixture should be of the consistencyof heavy cream to insure its setting close-ly around the rods at all points. Reinforcement for Tanks. The follow-ing table for reinforcement of tanks is sug-gested : 5x 55x1010x1010x1515x1015x15 44881212 VaA HH %X 666666 9912121515 ¥% VA2% 2lA3 2Vz3 Concrete as a Fireproof Material. Con-crete is generally assumed to be and ac- cepted as being fireproof. The later lawson the subject generally accept it as fire-proof and prescribe the minimum thick-ness to be used for covering embeddedmetal. It
Cement houses and how to build them. . ne inch in diameter andthe mixture should be of the consistencyof heavy cream to insure its setting close-ly around the rods at all points. Reinforcement for Tanks. The follow-ing table for reinforcement of tanks is sug-gested : 5x 55x1010x1010x1515x1015x15 44881212 VaA HH %X 666666 9912121515 ¥% VA2% 2lA3 2Vz3 Concrete as a Fireproof Material. Con-crete is generally assumed to be and ac- cepted as being fireproof. The later lawson the subject generally accept it as fire-proof and prescribe the minimum thick-ness to be used for covering embeddedmetal. It cannot be denied that concreteis incombustible, but that it will not dis-integrate under stress of great heatcannot be maintained. The New Yorkbuilding authorities have made four-teen tests on concrete constructions, sevenof which proved successful. It seems thatin the case of the building that failed tostand the test the concrete was too greenand the moisture in the concrete was con-verted into steam that caused the part vm. Sidewalks, Pavements and Floors. Foundation. The first step in makingconcrete sidewalks is the excavation of theground and preparation of the surface byramming for the reception of the stone,gravel or cinders. In localities where thefrosts are heavy the ground should be ex-cavated to a depth of twelve inches. Inmilder climates it need not be excavatedfurther than six inches. An average thick-ness for the sub-foundation is six inches,although if the ground is always dry itneed not be more than three. The sub-foundation—stone, gravel or cinders—should be well pounded down to assure itsbeing firm. The practice in some locali-ties is to permit cinders to lie for sometime in place before operations of layingthe walk are commenced. The foundation consists of a layer ofconcrete topped by one of cement mortar. Proportions. In the making of walksPortland cement should be used. The pro-portions for the concrete are about 1:3 anda depth of 3 to
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdomesticarchitecture
