...) will be :- (l) Reduction in bending moment. (2) Less variation in factorof safety. (3) Increase in steel and concrete stress. (4) Increase of cracking. (5) Increase of deflexion. If the four slabs previously designed for full dead loading are now re- , designed for 68 per cent. of the dead load, a comparison...

... time of the cement the better were the prospects of getting good concrete. It was almost true to say thaatll concrete cracked in theMiddle East, andsimilarly all brickwork cracked, but with slow-setting cement the cracking seemed to be very much less than the cracking which occurred with rapid...

... WATER PILES QUALITY CONTENT CEMENT RATIOS RUNWAYS FAILURES REINFORCED REPAIRS METHODS GUNS AIR ENTRAINED HAC HIGH ALUMINA SUPERSULPHATED PROTECTION AGGREGATES REINFORCEMENT MATERIALS CRACKS EFFECT MOORLAND BRIDGES SUPERSTRUCTURES OVERBRIDGES LOCOMOTIVES BLAST VELOCITY...

...R H EVANS; K W MAUTNER © Thomas Telford and ICE 1942 WIRE BARS REINFORCEMENT PRESTRESSED CONCRETE BEAMS STRESS TENSILE ALLOYS STEEL STRAIN SURFACE SAFETY VERTICAL CRACKING STRENGTH CONCRETE LABAORATORY STUDY OF LONDON CLAY. 501 tbe made. A Paper on the subject had...

... is to introduceinitial stresses in the concrete of opposite sign to that produced by the dead and live loads, thereby eliminating any tensile cracks in the concrete by maintaining a fullyloaded beam with compression over the whole section. For this purpose M. Preyssinet has used both high-tensile steel bars and ~~ ~ - 1...

...W J E BINNIE; T P FRANK; O FABER; C S CHETTOE; E ANDREWS; E C SMITH; J CUEREL; C E REYNOLDS; E PROBST © Thomas Telford and ICE 1941 DATA PRESTRESSED CONCRETE CALCULATED STRESS TESTS BEAMS CALCULATIONS CREEP SHRINKAGE STEEL ECONOMY SAFETY BEHAVIOUR LOADS CRACKING...

.... Inst. C.E. Correspondence. Mr. H. B. GATES, of Perth, WesternAustralia, referring to t,heMr.Gates. construction of the Laggan dam, observed that too much attention appeared to be given to the effects of cracks in concrete dams. He had recently visited the Mundaring dam inWestern Australia, which...

...JOISUBCOMSPECEM INSTITUTION RESEARCH COMMITTEE JOINT SUBCOMMITTEE ON SPECIAL CEMENTS JOISUBCOMSPECEM MEASUREMENT FREE SHRINKAGE CRACKING CEMENT CONCRETE STRESS CRACKS 272 ENGINEERIXG RESEARCH. ENGINEERING RESEARCH. THE INSTITUTIONRESEARCH COMMITTEE. Joint Xub-Committee...

... MANUFACTURE RUBBER MATERIALS CRACKS TRANSVERSE CRACKING VIBRATIONS DISCUSSION ON BEHAVIOUR OF REINFORCED-CONCRETE PILES 203 Discussion. Mr. GEOFFREYGRIMEgave three demonstrations of the experi-Mr. Grime. mentalmethods employed by the Authors. A model pile made of rubber-latex, cement and sawdust...