. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. rroads loosely bound due to lack of .suitable binder and where the the additional oil necessary in this method is less than the importa-tion of binder used in conjunction with the penetration. A briefdescription of both methods follows: Penetration method. On crushed gravel or stone roads, tightly bound,the surface rock is exposed with a power broom. Light fuel oil heatedto between 150 degrees and 200 degrees F. is applied with a pressuredistributor at the rate of one
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. rroads loosely bound due to lack of .suitable binder and where the the additional oil necessary in this method is less than the importa-tion of binder used in conjunction with the penetration. A briefdescription of both methods follows: Penetration method. On crushed gravel or stone roads, tightly bound,the surface rock is exposed with a power broom. Light fuel oil heatedto between 150 degrees and 200 degrees F. is applied with a pressuredistributor at the rate of one-fourth gallon per square yard of surfacetreated, and allowed to penetrate. The period of penetration variesfrom six to twenty-four hours, depending on the tightness of the secured vary from one-half inch to one inch. While thetop is slightly sticky, a second application of one-fourth gallon persquare yard of heavy fuel oil is made, the free oil not taken up by thebase being screened with clean roek or pea gravel three-fourths inchto one-eighth inch in size. Experience, however, demonstrates that. Woven wire and brush bank protection work, Santa Ana River in Orange County 78 DEPARTMENT OF PLBLIC WORKS better results are secured by niakinj; one-half infh the maximum sizeof the rofk. Inasmuch as this cover material is for the protection oftraffic, the amount varies with the conditions encountered. Isually100 to 120 tons per mile arc sutlicient, but where it is necessary to imme-diately carry travel over the new work, 120 to KiO tons arc required. The public appreciation of this type of surface is very emphatic, butits popularity would rapidly wane were not a stringent control exer-cised during the period of oiling. Travel is detoured where possible,or the road oiled in widths permitting of two-way traftic. On nar-rower roads with light traffic, controls are established at convenientintervals, allowing one-way travel. On similar roads with heavy traffic,each appl
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Keywords: ., bookcentury1800, bookdecade1850, bookidappendixtojo, bookyear1853
