CONTENTS 



PVGE 



IntrtKluction 1^ 



Manufacture of cement pipe ^7 



McCracken pipe machine ^' 



Other pipe niacliines 81 



Sherman ^i. 



Schenk J; 



National •" °" 



Monarch ^] 



Thomas- Hammond °; 



Allen 



Sanders (Pomona) ... 



Kellar-Thomason 



Pneumatic air tampers 



Duryee-Cole 



Hand-made cement pipe. 



86 

 86 

 88 

 9() 

 90 

 90 



Wet-poured concrete pipe ^ 



Pipe making ^ 



The mortar ^ 



Curing 00 



Waterproohng J"^ 



Pipe laying and pipe-line failure s JO^ 



Pipe laying |0^' 



The trench. 



103 



Methods of laving J04 



Risers 08 



Effect of high temperatures jVg 



Effect of wetting dry pipe JY^ 



Tests ; ]Y 



Internal pressure and percolation tests 11^ 



External pressure tests |^'^ 



Loads on pipe in ditches and design of pipe lines 131 



Absorption tests j;^; 



Internal friction tests |^^ 



Capacity tables J^^ 



Durability J^" 



Pipe line structures J^"^ 



Gates J2j 



Risers \]^ 



Pipe line systems J^^ 



Special structures j4^ 



Other uses of cement pipe j^3 



Sewers |^^ 



Bridges and culverts |^^ 



Drain tile ]^\ 



Gates 62 



Underflow collecting flumes and inverted siphons loZ 



Domestic supply pipe lines J63 



164 



Summary 



