http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : G. Prabha (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Flexural Behaviour of Steel-Foam Concrete Composite Light-Weight Panels
Prabha, P.,Palani G. S.,Lakshmanan N.,Senthil R. 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.9
The present study explores the applicability of composite panel made of thin profiled steel sheets of thickness 0.8 mm as the outer skins with an infill Light-weight Foam Concrete (LFC) core of density 1200 kg/m3 for use as floor/roof panel in buildings by conducting experimental studies. This study was carried out in continuation with the previous studies reported by Prabha et al. (2013) on composite wall panels. Through-through mild steel connectors were used for the load transfer between sheet and concrete. Two types of concrete core, namely (a) Normal Foam Concrete (NFC) and (b) Fibre Reinforced Foam Concrete (FRFC) were investigated. The polypropylene fibres were used for improving the tensile strength of LFC. The composite panels exhibit gradual load-deflection response and ductile failure mode at higher deflections under four point bending test. The ultimate load of FRFC specimen is found to be 6% stronger than NFC panels, which implies that the use of polypropylene fibers marginally improved the flexural strength. The panels possess sufficient flexural capacity for spans upto 5 m and high ductility factor of 10 to be used as floor/ roof panels in residential buildings. Numerical parametric studies indicate that the configuration 24 nos. of studs used in the experiment is found to be optimal and the flexural capacity increases proportionally for the higher thickness of steel sheet. Simplified equation is proposed for the evaluation of flexural strength of the panel.
-
Study on polyester resin concrete for applications in chemical & power plant industry
S. Lavanya Prabha,M. Surendar,G. Prabha,A. Mohan 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.5
Polyester polymer resin concrete is a type of concrete that incorporates polyester polymer resins as a binder instead oftraditional cement. In this study, concrete was made using three resins: vinyl ester resin, superior vinyl ester resin, andbisphenolresin. The ingredients of polyester polymer resin concrete are three types of polyester resin, 1-2% of Methyl ethylketone peroxide (MEKP) as the catalyst, Cobalt Octoate as the Accelerator and N, N-dimethylaniline as the promoter of 1%is used to make the binding resin. Along with binding resin calcium carbonate as filler and fine aggregate (normal riversand)passing through 2.36 mm sieve and retained on 600-micron sieve and course aggregate of size 6mm were used to make theconcrete. 36 trail batches were carried out for preliminary investigation targeting a compressive strength of 70 MPa. Theshortlisted batches were taken for detailed investigation on mechanical and durability properties. The stress strain behaviourisstudied and dynamic modulus,poisons ratio is calculated with various correlative equations for mechanical properties. Thedurability properties of the resin concrete were assessed as per ACI 515.2R-13 [1966] for the acid and base solutions. Byimmersing the samples in three diluted acids and two alkaline media, such as 10% sulphuric acid, 10% nitric acid, 10%hydrochloric acid, 10% sodium sulphate, and 10% magnesium sulphate, the durability property is assessed. Variations incompressive strength, mass, and the look of the submerged samples, among other variables, have been studied and it foundthat the Vinyl ester resin concrete possesses a higher acid resistance property.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
