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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.7, 2004³â, pp.45-55
°æÈ­ ¸ð·¡ÀÇ ÆÄ±« Ư¼º¿¡ ´ëÇÑ ½Ã·á ¹× ÀÔÀÚÀÇ Å©±â ¿µÇâ
( Size Effect of Specimen and Aggregate on Fracture Characteristics of Cemented Sand )
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In the past it has been often observed that the shear stresses at failure are much smaller than the shear strength obtained from traditional laboratory tests and conventional analysis technique is inadequate in stiff soil, such as cemented sand. Many researchers have brought attention to the fact that the presence of flaws i.e. fissures, cracks, joints have a great effect on the strength and overall stress-strain behavior of such materials. They have thought that fracture mechanics may appropriately be adopted as a good tool for analysis of these materials. However, the use of fracture mechanics concept especially for cemented sands is faced with difficulties in obtaining relevant parameters, because fracture parameters and predictions are highly dependent on the material constituents and the size of specimens as well as the size of particles. This paper addresses the effects of sizes which include specimen and aggregate on fracture properties of cemented sand. The results of laboratory tests show that the sizes of specimens and particle have a great effect on the fracture properties such as nominal strength of cemented sand.
 
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Cemented sand;Crack;Fracture mechanics;Nominal strength;Shear strength;Size effect;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.7, 2004³â, pp.45-55
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200425720310896)
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