Show Soil soa Cement Paving Uses Sk O Site Soil-cement Soil paving under consideration for the modern modernization i- i of or Bountiful streets has hasa a definite advantage antage lon long recognized recognized recognized rec rec- by paving over o other othel the thc obvious ob ob- obvious I ious saving in costs by utilizing utilizing ing the soils on or near the construction site I O ONLY LY THREE basic materials mater mater- are aie needed in soil cement soil portland cement and water wa wa- ter Low first cost is achieved ed mainly by using cheap local materials The TIle soil which makes up the lie bulk of or soil ceo ment ce-ment is either cither in place or obtained ob tanned nearby and the water is usually hauled only short distances The word woid soil as used in soil cement soil means almost an any combination of gravel gra sand silt sm and cIa clay and includes such materials as cinders ca lithe liche shale and chat and many waste materials AS TILE THE cement h sites it forms a hard dm durable able low low- co cost t paving pavin material which topped b by a h thin bituminous surface pi provides ovules a long last ing and md low lowr n nee c e street The idea of soil soil soil-cem c e n t dates back to 1917 when DiT Di Dr Dr i T T. II II Ami Amies s of Philadelphia I obtained a patent on a material mater mater- material ial that he called It SINCE 1917 there have been many experimental projects but in recent years the whole concept has passed far fm from the experimental phase In comparison with today's standards methods used in building experimental roads loads were crude at best Yet nearly nearly nearly near near- ly all of oC these early eaily roads are arc still carrying traffic I THE TiiE CONTINUAL growth and acceptance of soil soil cement is the lire result of the combined efforts of many state county and city highway depart menu ments government agencies equipment r c r s contractors consulting engineers engi engi- testing laboi laboratories atones and individuals I Many l thousands of or miles of oC I soil soil cern nt p paving lvin have been placed in the United States and Canada Following Amer ican practices man many foreign countries have ha also done extensive extensive ex ex- research and builtman built man many miles of oC low cost soil soil- cement paving A AMONG IO G the characteristics of soil soil cement canent is is that during constructIon the soil cement mixture is compacted to a high h density As the cement r hydrates the mixture hardens in that state and does docs not consolidate consolidate con con- further under traffic or rut lul or shove during dining spring thaws Soil-cement Soil has the ability to bridge budge over local weak sub sub- grades It does not soften when what exposed to extreme wet wel welting ting ling and imd drying or freezing and thawing Since soil cement is a cemented hardened matel material ma- ma tel al it has greater load car lying capacity than any other paving material except conci con con- ci crete etc |