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t _ _ _ . .. -
<br /> RCC. . .
<br /> have been used very successfully in ams certainly aren't the only
<br /> How well does'RCC contain wa- RCC construction. Watertightness applications of RCC. Its used
<br /> ter? Ernest Schrader told those at- can be built into the system by has spread to heavy equipment t--.-:
<br /> tending the May ASCE convention means of an extremely tough, dura- parking lots and airport aprons and
<br /> in Denver that a mass of RCC with- ble, flexible and permanent water- taxiways, plus container ports. 14:
<br /> out joints is essentially watertight proof barrier cast into the back of At Fort Hood, Tex., RCC was r'
<br /> within the normal range of very low the panels. Every joint betwee=n pan- placed for a parking lot for tanks,
<br /> to high cement factors. "However, els must be spliced in the field after and RCC was used to pave a tractor-
<br /> joints between RCC layers and panel installation to provide a con- trailer yard for the Burlington
<br /> 1-:
<br /> cracks permit seepage and internal tinuous watertight barrier, and every Northern Railroad in Houston, Tex.
<br /> pressures that normally are undesir- anchor or tie-back support must RCC has been applied to form � .
<br /> able and sometimes are intolerable," also be permanently sealed to the pavement which can be used to carry ,
<br /> he said. barrier," he said. heavy loads. For example, RCC has
<br /> "When seepage control is neces- "This was done at Winchester res- been used to pave sorting yards, log ..*
<br /> sary, a variety of techniques are ervoir using a 0.065-inch thick corn- haul roads and a coal storage site in
<br /> available to accomplish it. Each job mercially available ribbed PVC western Canada. j:;
<br /> is site specific." sheet liner specifically developed With the swift development of
<br /> The upstream face of an RCC and used as a watertight and wear- RCC have come distinct opinions as
<br /> dam can be constructed using a vari- . resistant material for concrete pipes to the material itself and the con-
<br /> ety of techniques from standard subjected to severe environments. struction methods to place it. How-
<br />' forming with internal tie-backs to The trained crew, heat welding the ever, industry officials agree that it
<br /> precast panels, according to Schra- lapped splices between the panels is an interesting concrete concept
<br /> der. and over the anchor bars, was able which is continually being upgraded
<br /> "Precast upstream facing panels to keep up with production on this through testing and application. -V.
<br /> which serve as a stay-in-place form relatively small dam." continued
<br /> ROLLER COMPACTED' CONCRETE PROJECTS UNDER CONTRACT
<br /> Owner RCC Probable RCC
<br /> . Name Designer Contractor lc.y) Constr. Gates iti
<br /> 1. Galesville Dam Morrison-Knudsen EngrS. Douglas County. Ore. 223,000' June-July 1985
<br /> Azalea,Ore. San Francisco, Calif. Venture Const.
<br /> M.A. Segale RCC Sub.)
<br /> 2. Kerrville Poeding Dam-rehab. Espey-Huston & Assoc. Upper Guadalupe River Auth. 21,000 June-July 1985
<br /> Kerrville,Tel. Austin, Tex. H.B. Zachry Co.
<br /> & Rone Engrs. —Dallas, Tex. -
<br /> 3. Upper Stillwater Dam Bureau of Reclamation Bureau of Reclamation 1,400,000' Start Aug. 1985
<br /> Duchesne,Utah Denver, Colo. Tyger Const. Co. complete in 1987 a
<br /> 4, Monksvllle Dam O'Brien & Gere NJ Dist. Water + 289,000' 1986
<br /> Ringwood, N.J. Blue Bell. Pa, Hackensack Water CO.
<br /> S.J. Groves Co.
<br /> 5, Grindstone Canyon Dam Boyle Engineering village of RuidosO 120.000' 1986
<br /> Rnidoso,N.M. Albuquerque, N.M. Avery Structures, Inc. pending award
<br /> w
<br /> ROLLER COMPACTED CONCRETE PROJECTS PLANNED FOR BIDDING IN 1985 OR 1986
<br /> 1-
<br /> 1. Pamo Dam Dames & Moore San Diego County 485.000' 4th quarter 1985
<br /> Ramona, Calif. Phoenix, Ariz_ Water Dist.
<br /> 2. lake Robertson Dam Lemieux Roy & Assoc, Hydro Quebec 41,800' 4th quarter 1985
<br /> eastern Quebec. Canada Montreal, Canada Jan, 1986
<br /> 3. Cedar Falls Overflow Dike R.W. Beck & Assoc. Seattle City tight 4,800' March 1986 :0
<br /> North Bend, Wash. Seattle, warn. ' site visit 10-7-85
<br /> 4. Stagecoach Dam Woodward Clyde Consultants upper Yampa Water 80,000' 1986
<br /> Steamboat Springs, Colo. Denver, Colo. Conic. Dist.
<br /> S. Elk Creek Dann Corps of Engineers Corps of Engineers 1,100,000• 1986 — depends on
<br /> Medford,Ore. Portland. Ore_ govt. funding
<br /> 6, Spring Creek Dam — rehab Colorado Div. of Wildlife Colorado Div. of Wildlife 4,000' 1986 — depends on
<br /> Gunnison,Colo. + M-K Engrs. — Denver, Colo. govt. funding
<br /> 'plus conventional concrete facing
<br /> 34 August 1, 1985—
<br /> vg Consnvpion Nest
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