@article{ART001547006},
author={Yooteak Kim and Changsub Jang and 류유광},
title={Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2011},
volume={21},
number={2},
pages={82-86}
TY - JOUR
AU - Yooteak Kim
AU - Changsub Jang
AU - 류유광
TI - Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2011
VL - 21
IS - 2
PB - The Korea Association Of Crystal Growth, Inc.
SP - 82
EP - 86
SN - 1225-1429
AB - Lightweight aggregate which is composed of sintered polycrystalline materials usually has a certain portion of pores inside of it. Because of such a structural characteristics, it tends to that movement of water in aggregate shows an abnormal behavior against the change of outside environment. In general, water movement behavior is controlled by porosity, distribution of pore size; however, dense surface layer will also affect water movement behavior in case of artificially sintered aggregates. Factors affecting water movement behavior in the aggregate are pore distribution, pore shape, pre-wetting method, etc. In this study, absorption characteristics of aggregate under the pressure and absorption rate according to water dipping time are analyzed for the basis of pressure pumping of lightweight concrete. Two kinds of aggregates were used for the test: one is made by ‘L’ company in Germany and the other is of our own made at the pilot plant in Kyonggi University. Absorption rate of aggregate is measured according to water dipping time, vacuum pressure,and quenching condition. Absorption rate of aggregate with 300oC quenching is higher than that of aggregate with 24 hr water dipping. Generally the more vacuum the higher water absorption rate. Water absorption rate of ‘L’ aggregate under −300 mmHg is 54 % higher than that of aggregate with 24 hr water dipping; however, only 2 % increase in water absorption was measured for the K622 and K73 which were of our own.
KW - Artificial lightweight aggregates;Pre-wetting;Pore size;Absorption;Vacuum;Pumping
DO -
UR -
ER -
Yooteak Kim, Changsub Jang and 류유광. (2011). Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting. Journal of the Korean Crystal Growth and Crystal Technology, 21(2), 82-86.
Yooteak Kim, Changsub Jang and 류유광. 2011, "Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting", Journal of the Korean Crystal Growth and Crystal Technology, vol.21, no.2 pp.82-86.
Yooteak Kim, Changsub Jang, 류유광 "Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting" Journal of the Korean Crystal Growth and Crystal Technology 21.2 pp.82-86 (2011) : 82.
Yooteak Kim, Changsub Jang, 류유광. Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting. 2011; 21(2), 82-86.
Yooteak Kim, Changsub Jang and 류유광. "Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting" Journal of the Korean Crystal Growth and Crystal Technology 21, no.2 (2011) : 82-86.
Yooteak Kim; Changsub Jang; 류유광. Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting. Journal of the Korean Crystal Growth and Crystal Technology, 21(2), 82-86.
Yooteak Kim; Changsub Jang; 류유광. Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting. Journal of the Korean Crystal Growth and Crystal Technology. 2011; 21(2) 82-86.
Yooteak Kim, Changsub Jang, 류유광. Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting. 2011; 21(2), 82-86.
Yooteak Kim, Changsub Jang and 류유광. "Water absorption characteristics of artificial lightweight aggregates prepared by pre-wetting" Journal of the Korean Crystal Growth and Crystal Technology 21, no.2 (2011) : 82-86.
