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- W581198977 abstract "THIS PAPER SUMMARISES 11 REPORTS DEALING WITH THE INFLUENCES OF THE MIX-DESIGN AND GRADING OF CEMENT, NATURE AND PROPORTIONING OF ADMIXTURES AND WATER ON THE SHRINKAGE OF CONCRETE. THE MAIN CONCLUSIONS REACHED ARE AS FOLLOWS: (1) THE FINENESS OF GRINDING OF THE CEMENT HAS A MARKED EFFECT ON THE SHRINKAGE OF MORTAR BUT AN INSIGNIFICANT INFLUENCE ON THE SHRINKAGE OF CONCRETE, (2) THE NATURE OF THE AGGREGATES MAINLY INFLUENCES SHRINKAGE THROUGH THE MODULUS OF ELASTICITY; (3) GENERALLY, ADMIXTURES (PLASTICIZERS OR AIR- ENTRAINING AGENTS) DO NOT REDUCE THE VALUE OF SHRINKAGE; POLYMERS OFTEN CAN INCREASE THIS VALUE MARKEDLY. HOWEVER, IN SO FAR AS THEY ALSO INCREASE THE ULTIMATE DEFORMATION VALUE, IT IS POSSIBLE THAT THE RISK OF CRACKING IS NOT INCREASED, (4) THERE EXISTS A GOOD CORRELATION BETWEEN THE SHRINKAGE OF CEMENT PASTE AND SWELLING OF THE LATTER UNDER WATER; (5) FOR A GIVEN CATEGORY OF AGGREGATES, THE SHRINKAGE OF CONCRETE MAINLY DEPENDS ON THE PROPORTION OF SOLID INERT INGREDIENTS PER CONCRETE UNIT OF VOLUME; AND (6) THERE EXISTS A GOOD CORRELATION BETWEEN THE SHRINKAGE AT 28 DAYS AND THE FINAL SHRINKAGE OF CONCRETE SAMPLES. THIS PROPERTY FACILITATES THE FAIRLY RAPID PREDICTION OF THE FINAL SHRINKAGE VALUE. SEE ALSO IRRD ABSTRACTS NOS.47505 TO 47524." @default.
- W581198977 created "2016-06-24" @default.
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- W581198977 date "1968-01-01" @default.
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- W581198977 title "INFLUENCE OF THE CONCRETE COMPOSITION ON THE SHRINKAGE OF HYDRAULIC CONCRETES" @default.
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