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a[mm]/l - Memorial University of Newfoundland DAI
a[mm]/l - Memorial University of Newfoundland DAI
a[mm]/l - Memorial University of Newfoundland DAI
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Chapter 2<br />
REVIEW OF LITERATURE<br />
2.1. High-Strength Concrete<br />
2.1.1. General<br />
Qurlnty <strong>of</strong> concrete IS generally derenbed by as eomprr!ve nrength. Accordtng to the<br />
Amencan Concrete Innlture. ACI 363 (1992). ordsnav strucrural cancrele has been used<br />
wrlh r cornpreslve rlrength in b e nnge <strong>of</strong> 20 to 40 MPa. Whtle. hjgh-strength concrete<br />
1s defined as any concrew wtth over 41 MPa compresswe strength. But. in the 1st two<br />
decadcr. concrete ~8th hlgher compresswe strength has been used tn rhe cansrructlon <strong>of</strong><br />
high-nw buildrngr. long-span bndger. and <strong>of</strong>fshore structures. The new hlgh-strength<br />
concrete has n compresswe strength <strong>of</strong> 70 MPa and IW MPa.<br />
The uoe <strong>of</strong> high-strength concrete a sprendlng rapadly all aver the world and<br />
lncrearing faster than the development <strong>of</strong> appmpnate derlgn code reco<strong>mm</strong>endat8ons.<br />
Several recent invertlgatlons have been conducted on hlgh-strength concrete behvv~m to<br />
find the charancnstic behavlm <strong>of</strong> high-nrmgth concrete and to up@ the cumt
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