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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
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- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.2
- 발행연도
- 2017.1
- 수록면
- 177 - 184 (8page)
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초록· 키워드
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The characteristics of lightweight aggregate (LWA) with a low specific gravity and high water absorption will significantly change the properties of lightweight aggregate concrete (LWAC). This study aimed at exploring the effect of presoaking degree of LWA on the strength degeneracy of LWAC and flexural behavior of LWAC members exposed to elevated temperatures. The residual mechanical properties of the LWAC subjected to elevated temperatures were first conducted. Then, the residual load tests of LWAC members (beams and slabs) after exposure to elevated temperatures were carried out. The test results showed that with increasing temperature, the decreasing trend of elastic modulus for LWAC was considerably more serious than the compressive strength. Besides, the presoaking degree of LWA had a significant influence on the residual compressive strength and elastic modulus for LWAC after exposure to 800C. Moreover, owing to different types of heating, the residual load bearing capacity of the slab specimens were significantly different from those of the beam specimens.
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참고문헌 (35)
참고문헌 신청
2014 / Building Code Requirements for Structural Concrete and Commentary / ACI 318-14, American Concrete Institute
2014 / Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens / ASTM C39/C39M-14a, ASTM International
2014 / Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression / ASTM C469/C469M-14, ASTM International
1996 / Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens / ASTM C496-96, ASTM International
2010 / Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading) / ASTM C78/C78M-10, ASTM International
2014 / Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens / ASTM C39/C39M-14a, ASTM International
2014 / Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression / ASTM C469/C469M-14, ASTM International
1996 / Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens / ASTM C496-96, ASTM International
2010 / Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading) / ASTM C78/C78M-10, ASTM International
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