고칼슘 연소재를 이용한 매입말뚝의 주면고정액에 관한 실험적 연구
An Experimental Study on Filling Material for Bored Pile Using High Calcium Ash
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초록
본 연구에서는 순환 유동층 보일러의 고칼슘 연소재를 활용하여 개발한 새로운 매입말뚝의 주면고정액(ZA-Soil)에 대한 성능을 평가하기 위해 실내시험을 실시하였고, 보통 포틀랜드시멘트와의 비교평가를 실시하였다. 실내시험 결과, 매입말뚝의 고강도 주면고정액(ZA-Soil 1)과 저강도 주면고정액(ZA-Soil 2)의 압축강도는 보통 포틀랜드시멘트 대비 68.0%와 64.6%인 것으로나타났고, 적절한 유동성과 환경적 안정성을 확보하고 있는 것으로 나타났다. 또한 매입말뚝의 고강도 주면고정액(ZA-Soil 1)을 흙 재료와 혼합한 경우 재령 28일에서의 압축강도가 보통 포틀랜드시멘트를 사용한 경우의 압축강도에 비해 1.10~1.23배큰 것으로 나타나 강도증진효과가 우수한 것으로 나타났다.
Abstract
In this study, laboratory tests were performed to evaluate for new filling materials (ZA-Soil) for bored pile that were developed using by high calcium ash. As a result of laboratory test, the uniaxial compression strength of 2 types of ZA-Soil are shown 68.0% and 64.6% compared to ordinary portland cement. And it have a suitable flowability and environmental stability. Also, after 28days, uniaxial compression strength of material mixed with soil and high strength filling material (ZA-Soil 1) for bored pile is 1.10-1.23 times bigger than material mixed with ordinary portland cement.
참고문헌 (14)
- "ACI Committee 229, Controlled Low-Strength Materials", ~ (2005)
- "ASTM C 1608, Standard Test Method for Chemical Shrinkage of Hydraulic Cement Paste", ASTM International, ~ (2012)
- 홍원표, "시멘트밀크 배합비에 따른 다양한 지반 내 SDA매입말뚝의 연직지지력", 한국지반공학회논문집, 24(5), pp.37~54 (2008), 한국지반공학회
- Korea Land and Housing Corporation, "Specifications of Administrative City Construction", ~ (2012)
- "KS F 2312, Standard Test Method for Soil Compaction", Korea Standards Association, ~ (2016)
- "KS F 2328, Testing Method for Compressive Strength of Molded Soil-Cement Cylinders", Korea Standards Association, ~ (2002)
- "KS F 2329, Testing Method for Making Curing of Soil-Cement Compression and Flexure Test Specimens in the Laboratory", Korea Standards Association, ~ (2007)
- "KS F 2413, Method of Test for Compressive Strength of Concrete using Portions of Beams broken Flexure", Korea Standards Association, ~ (2015)
- "KS L 679, Method of Testing Cements - Determination of Strength", Korea Standards Association, ~ (2006)
- "KS L 5405, Fly Ash", Korea Standards Association, ~ (2016)
- Lee. Y. S., "An Experimental Study on the Quality Properties of Concrete using Dredged Soil", Master, pp.2012
- Song, S. H., "A Study on the Evaluation of Practical Application of PHC Pile-Filling Material utilizing High Calcium Fly Ash", Master, pp.2017
- Won, J. P., "Properties of Controlled Low- Strength Material Containing Bottom Ash", Journal of the Korea Concrete Institute, 13(3), pp.294~300 (2001)
- Woo. Y. Y., "Characteristics and Evaluation of Circulating Fluidized Bed Boiler Ash", Doctor, pp.2015