Show REPORT ON NEW SIDEWALKS assistant state engineer sais the is up to standard and is ot of good quality there has been much talk concerning tilt the cement sidi walkie recently constructed in paving district no 2 below I 1 10 given the report of assistant state saito joseph jensen which was wab submitted by him to the liti cou coucill nill and this report should settle settie the matter as fa far as the empet eney ency of the sidewalk construction Is concerned richfield eld utah november 21 1910 10 lo 10 tile the city of ld richfield utah gentlemen in con aliance with lour boue request chave I 1 have this day inspected the concrete te side walks in your city and respectfully submit the following CHARACTER 01 THE CONCRETE the concrete forming the walks is of good quality duality it is hard set tile the wearing surface is ib veil tell cemented to the base it is uniform in texture and color A determination of specific gravity aid water alive the following result absorption Absorb tion after fifteen minutes immersion by weight 1 3 per cent after fifteen minute lin im gersion by volume 3 1 per lent cent ar cavity IVAY 2 4 or weight eight w per ubil foot foit pounds this determination was made mada on a fragment which had been broken from the outer edja of the side walk on oil center street an ideal corbrete cor crete should st ebow a slightly less absorption absorb tion of water this slight excess of avater absorption absorb tion is not at at all aside from this the loucreta Lon creta is normal and will lull in my opinion gial entirely bit l factory serice wr ice or 01 CON CllON except on cmur bhreel the liar eter of the appears to have ben b en of a first order on oil his chis it appears that flirt tho the joints in tile brince layer his has not lot bees bce mado made to biform in with the joints on oil ra pago 5 rrt report on new sidewalks continued from page 1 in the base this condition his baa developed a number ot at cracks in the sur eur face layer immediately the joint in the base aside from froin the appearance pe arance this thia defect la is not of a setona senous nature foundation one of the usual requirements specified pec for cement or concrete ai sidewalk dewalk pavement is that the base should be placed upon a sub sab lay r of gravel grael sand cader or other porous material the ot of this is 13 that the ground immediately under the concrete shall not become water logged in other words to afford gord drainage dra drai irge rage for the sub base experience has baa shown that when this thia arii ark inage has haa not been pro pr vided aided for and the sub base becomes water logged in hard freezing weather eather there is 13 ek a tend tendency ney for the ground i arder the to heave aad break the concrete the sub auh bas forthe for the sidewalks in your city BP ap pears peara to be a heavy rather soggy clay under chii condition there Is a possibility that the concrete may crack dui due to a swelling of the ground under it this possibility however is lessened from the fact that sidewalks in dour cit citi J which llave have been in place for moreth more than anone one year and which are evidently subject to the game condition ondi tion abow at this time to 10 defects from this cause respectfully |