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Tednesda <br />1 <br />6 6'5 <br />19th•,1915. Continued. <br />=LAYITIG. - <br />All pipes shall be laid true to grade arld. line with the spigot end extend- <br />ing toward the outf'all. The backfilling shall be thoroughly tamped under the invert of <br />the ripe in thin layers, and also around the sides and over the top of the pipe for at <br />least six inches before the backfill is ailoved to be thrown in the trench from the top <br />in large quantities. <br />JOINTS . <br />All joints shall be made of Portland: Cement mortar, mixed one part :Portland <br />Cement and two parts clean sharp sand. The mortar shall be thorou.b.ly troweled in the <br />recess in the interior of. the pipe lineup to the spring, making a continuous invert. <br />After this has been done steel f'orm6, especially designed for the purpose, shall be placed <br />over and around the entire joint, end the mortar for sewing the arch portion shall be grouted <br />or poured through an opening in the crown of the pipe. <br />5eckion Through JoirnK <br />- •�dl. '��'':�.ra•+r�v�.�,i,`+ i}s{{:a�A ye'f •s^iw aa�-. i�^r ♦ - <br />�f>I ��� Y •,s 4 Y � <br /><ii\ ?r, \'K )' /� /+ A 4 F k '� Triangle Mesb � <br />\ \ i <br />C IN <br />14 <br />t c <br />/ <br />Vie• <br />. Ma ia�ew •�`a.N.;y '""` • .� rr �.r �� •_ a mac' ,• <br />..r.-7' .r . ��.^�w%sue. w :M`•�' � + x• •s'%t r¢r. t ' ' : i x°t <br />Long • Mal Section. Cross Section:, <br />Reinforcement A.3,6w. Triantle Mesh. <br />_ <br />Limermom. <br />R <br />; R' <br />48k-b- <br />51 <br />51- <br />4F«r- <br />IWbe.3 <br />jkpee <br />P/ytxAcs- <br />Ilneb <br />2 L4 ero. �} li IY uvn bsr 27-. <br />54 � <br />Se • <br />q <br />5=.,, <br />3; :•,,.. <br />!�/.• <br />1..• <br />,7.. 2� � _. _. _.,�.:;.: ._• .__.: ..Z6.—....._ _ :_...� <br />57 , <br />g <br />31 <br />SA <br />Gi <br />34 <br />34 <br />23 <br />78 <br />g <br />4 <br />5 <br />3= <br />2 <br />F <br />2 33 <br />33 <br />