Investigation on Failure Modes of Precast Foamed Sandwich Panels under Punching
Praveen Anand1, H Thiagu2
1Praveen Anand, Department of Civil Engineering, SRM Institute of Science and Technology, Kancheepuram-603203, India.
2H Thiagu, Department of Civil Engineering, SRM Institute of Science and Technology, Kancheepuram-603203, India.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 1269-1276 | Volume-8 Issue-8, June 2019 | Retrieval Number: H7028068819/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This study focuses to develop the strength of foam concrete by trying different mixes of cement and fly ash. If strength obtained is not enough to convert the specimen into a structural element, cementitious materials like GGBS are imparted into the mix. The various mix ratio of fly ash and cement is investigated here. Analysis of precast foamed sandwich panel(PFSP) and RCC panels are done. And they tend to possess same cracking pattern. The ultimate load of PFSP is quite comparable to that of RCC panel. Also two panels, square and rectangular ones, and their cracking patterns and the load at which the panels fail and their stress patterns are observed. Shear connectors are provided so as to improve the shear resistance of the panels. This technique is highly desirable as sandwich panels are highly efficient. The effect on compressive strength at 7th and 14th days have been discussed. Thus PFSP can be used as a replacement for RCC slabs as they tend to possess less density and high thermal resistivity properties.
Keyword: Precast foamed sandwich panel (PFSP), Cracking pattern, Ultimate load, Stress patterns, Shear connectors, Foamed concrete.
Scope of the Article: Properties and Mechanics of Concrete.