A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
D-Cracking in PCC Pavements: Cause and Prevention
Field studies to arrest D-cracking in existing pavement by means of surface treatment with linseed oil in mineral spirits, with a commercial silicone, and with a commercial resin sealer were unsuccessful over 6 years of service. Vertical drains (wicks) for the purpose of removing base course moisture proved totally ineffective. Laboratory studies demonstrated conclusively that (Kansas) limestones contain no free lime; that the grinding of reactive river sands and gravels to high fineness to inhibit the alkali-aggregate reaction (actually to accelerate it to completion prior to forming the concrete) proved unfeasible; that bubbling pressure techniques can be used to determine maximum pore size in limestone samples, but not to discriminate 'good' limestones from 'bad' limestones with respect to D-cracking potential; and that D-cracking can be induced in the laboratory.
D-Cracking in PCC Pavements: Cause and Prevention
Field studies to arrest D-cracking in existing pavement by means of surface treatment with linseed oil in mineral spirits, with a commercial silicone, and with a commercial resin sealer were unsuccessful over 6 years of service. Vertical drains (wicks) for the purpose of removing base course moisture proved totally ineffective. Laboratory studies demonstrated conclusively that (Kansas) limestones contain no free lime; that the grinding of reactive river sands and gravels to high fineness to inhibit the alkali-aggregate reaction (actually to accelerate it to completion prior to forming the concrete) proved unfeasible; that bubbling pressure techniques can be used to determine maximum pore size in limestone samples, but not to discriminate 'good' limestones from 'bad' limestones with respect to D-cracking potential; and that D-cracking can be induced in the laboratory.
D-Cracking in PCC Pavements: Cause and Prevention
C. H. Best (author)
1974
121 pages
Report
No indication
English
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