1919 (#613-638) - Laserfiche WebLink

Home Browse Search

RESOLUTION NO. 623 A Resolution of the Board of Trustees of the Oity of Santa Ana, California, amending Specifications No.~5 a~ adopted by Resolution No.555 on the ~th day of October, 1917, Specifications for the Construction of pavement of concrete base and crushed rook and asphaltic oll surfacing in the City of Santa Aha, California, and to be known as Specification No.65-a. The Boaxd of Trustees of the City of Santa Ana do resolve and declare as follows:- Section 1. Resolved, that a new specification to be numbered g5-a for the construction of pavement with concrete base and crushed rock and asphaltic oil surfacing in the City of ~anta Aha, California, is hereby adopted. Section 2. That said specification shall conform to and include all of the specifications and requirements of specification Nc. S5 adopted and approved by the Board of Trustees of the City of Santa Ana, California, and known as Resolution No.SgS, adopted and approved by the Board of Trustees of the City of Santa Aha, California, on the Sth day o£ October,191?, excepting certain pro- visions, changes and alterations to said specification Nc.S5 as follows to-wit:- Concrete Base. (1) The proportions of the concrete base, Portland cement 1 part sand or stone screenings 2 parts, gravel or broken stone 4 parts. Mixing and Placing Concrete. Commencing with paragraph 6 at the bottom of page 5 of Specifica- tion 85 shall read as follows:- The mixer shall make at least ten (10) revolutions and in no case less than (45) forty-five seconds of time, after a batch of dry ingredients with the water has been completely placed in same before any concrete is removed. Ali concrete shall be used while fresh and before it has taken an initial est. Re-tampering with additional water, any concrete that ham partially hardened shall not be permitted. The concrete shall be dUmped direct from the mixer spout on t~e sub-grade a~d immediately shoveled into place and thoroughly tamped with a template. Five minutes after the tamping process, the concrete must be rolled transversely with a roller 5 feet long, 10" to 12" in diameter, constructed of 1/$" sheet iron. After the rolling process, the concrete shall then be floated by means of a metal float, floating transversely across the pavement. The floating to be continued until the concrete'has an even surface, free from all wavy effect. Sufficient water shall be added during the process of mixing to produce a plastic mixture which will flush under tamping, which ~ can be handled without causing a separation of the coarse aggregate from the water, in no case will sloppy concrete be used. Should a deficiency of mortar exist, it shall be remedied by varying the proportions of fine and coarse gravel or broken stone., and not by adding a greater portion of sand.