한국건축시공학회:학술대회논문집 (Proceedings of the Korean Institute of Building Construction Conference)
- 한국건축시공학회 2007년도 춘계학술논문 발표대회
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- Pages.67-70
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- 2007
경량골재 종류 변화에 따른 경량콘크리트의 특성 연구
Study on Characteristics of Lightweight Aggregate Concrete as Types of Lightweight Aggregate
초록
As construction industry is requiring competitive power and technique in national construction market with rapid fluctuation of construction environment and development, requirements upgrading performance in construction materials are increasing. But, national lightweight aggregate and lightweight concrete's inappropriateness when produced are also increasing. And there are not international standard of aggregates in using these construction materials because standards and characteristics of aggregate in each countries are different. Therefore, in this study, lightweight aggregate acquired due to wide range of use is tested and mixed for concrete to gain practicality and set the authorized manual in international. Also, basic data will be proposed to set a standard for concrete by analyzing lightweight aggregate characteristics. When lightweight aggregate absorptivity is high, concrete shows low strength and when it's density is low, concrete shows low weight of unit volume. Furthermore, compressive strength of lightweight aggregate is steep in first and longtime material age is tendency to cause low strength increasing rate.