Building system using GFRG panels

Building systems using Glass Fibre Reinforced Gypsum Panels.
This presentation brief about the manufacturing, suitabllity and use of GFRG panels for various components of building.

1. BUILDING SYSTEMS USING GFRG PANELS (Glass fiber reinforced gypsum panels) SRINIVAS SCHOOL OF ENGINEERING, MUKKA (Affiliated to visvesvaraya technological university, Belgaum, recognized by AICTE, New Delhi) MANGALORE a seminar on

2. Under the Guidance of Prof. GAGAN KRISHNA R.R (Asst. Professor of the civil engineering Department) Srinivas school of engineering, mukka , MANGALORE Submitted By: Mawan Rasheed 1 st sem Mtech structural engineering

3. TOPICS TO BE COVERED INTRODUCTION AND SCOPE OF PROJECT. LITERATURE SURVEY. PROPERTIES OF GFRG PANELS. MANUFATURING OF GFRG PANELS. APPLICATION OF GFRG PANELS. CONSTRUCTIONS STEPS FOR GFRG BUILDING CONSTRUCTION CONSTRUCTION JOINTS AND FISSURES USED FOR CONSTRCUTION. ADVANTAGES AND DISADVANTAGES. SPECIAL BENEFITS. DESIGN PHILOSOPHY. CONCLUSIONS

4. DEFINATION GFRG panels are the composite material of gypsum and glass fiber having an composition of GYPSUM(CALCIUM SULPHATE) = 89-94 % GLASS FIBRES = 4-6 % PORTLAND CEMENT = 1-2 % SAND OR SILICIOUS MATERIALS = 1- 5% GFRG panels are the hollow boards which is been used for the various component of building

5. INTRODUCTION AND SCOPE OF PROJECT Providing affordable housing is a challenge for developing like India. India have an shortage of nearly 17.6 million houses. There is also a challenge of disposal of industrial waste like gypsum. India having an nearly 2000 tones/day of gypsum waste generations. GFRG panel housing provide an adequate solutions to the above problems. GFRG panels are manufactured by using a gypsum as a core material by using a initiated technology since 1990 by Australia.

6. LITERATURE SURVEY The research work has resulted in two PhD theses and two PhD scholars are currently continuing the R&D efforts. The Department of Science and Technology, Government of India, had awarded a research grant of Rs 1.32 corers to complete the research work and bring it to a stage of technology transfer. The demo building is already constructed by IIT MADRAS to study the cost effectiveness and suitability in costal areas

7. LITERATURE SURVEY DEMO BUILDING BY IIT MADRAS

8. PROPERTIES OF GFRG PANELS

9. MANUFATURING PROCESS OF GFRG PANELS.

10. GEOMETRY OF FINISHED GFRG PANEL

11. APPLICATIONS OF GFRG PANELS LOAD BEARING WALL PARTITION WALL SLAB /FLOOR COMPOUND WALLS

12. CONSTRCUTION STEPS OF GFRG BUILDING CONSTRUCTION FACTORY PROCESS: GFRG panels are process and manufactured in factory for the fixed size. The size of GFRG panels coming out of factory is 2.85 x12 m The panels are cut in factory as per given plan sizes. Opening for doors and windows are made using especial cutting tool.

13. CONSTRCUTION STEPS OF GFRG BUILDING TRANSPORTATION: The finished boards are transported to the site by stillage. The panels are hold vertical in order to avoid damage due to movement. One stillage can hold 5 panels at a time .

14. CONSTRUCTION STEPS OF GFRG BUILDING FOUNDATION AND PLINTH BEAM: The foundation is constructed as per the given plan using stone masonry. Usually strip foundation is adopted for gfrg constructions. The plinth beams is constructed embebbed with starter bars protruding 0.45m outside the plinth to accumudate the erection of walls

15. CONSTRCUTION STEPS OF GFRG BUILDING ERRECTION OF WALLS: The GFRG panels walls are erected with temporary fissures and starter bars. The required infilling is done according to the design and reinforcement bars are inserted where ever needed

16. CONSTRCUTION STEPS OF GFRG BUILDING CONSTRUCTION OF SLAB/FLOOR The GFRG panels are placed on the walls with a bearing length of 20mm. The ribs are kept along the shorter direction of room. The top flange are cut and removed to accommodate to micro beam cage as shown .

17. CONSTRCUTION STEPS OF GFRG BUILDING CONSTRUCTION OF SLAB/FLOOR: The microbeam are constructed and a screed of 50mm is provided over it as shown in figure.

18. CONSTRCUTION STEPS OF GFRG BUILDING FINISHING. FINISHING WORK IS DONE WITH AN LAYER OF WATER PROOFING FOLLOWED BY PAINTING. NO PLASTERING IS REQUIRED

19. CONSTRUCTION JOINTS AND FISSURES USED IN GFRG BUILDING FOUNDATION TO WALL CONNECTIONS

20. CONSTRUCTION JOINTS AND FISSURES USED IN GFRG BUILDING WALL TO WALL CONNECTIONS

21. CONSTRUCTION JOINTS AND FISSURES USED IN GFRG BUILDING WALL TO SLAB CONNECTIONS

22. CONSTRUCTION JOINTS AND FISSURES USED IN GFRG BUILDING SLAB DETAILINGS

23. SPECIAL FEATURES Rapid wall building /housing Rapid wall is energy efficient Rapid wall is for affordable quality housing Rapid wall is cost effective Rapid wall is excellent in acoustics Rapid wall is fast in construction

24. ADVANTAGES OF GFRG BUILDING Reduction in structural weight of building. Saving of 40%cement, 35%steel, 50%sand, 27% aggregate. More carpet area. Saving of construction time by 78%. Reduction in emission of CO2. Effective use of industrial waste product. Suited for affordable mass housing

25. LIMITATION OF GFRG PANELS Cannot be used for wall with circular or higher curvature Clear span shall be limited to 5m for residential buildings, for non residential buildings, the span shall be limited to as specified in Designs Manual.

26. DESIGN PHILOSOPHY LIMIT STATE METHOD SND ITS CONSIDERATIONS GFRG panel building is designed based on limit state method. The various permissible limits are given in design manual by IIT madras The partial safety factor of load is considered to be 1.5 The partial safety factor for material is also considered to be 1.5 The constant value of response reduction factor is taken i.E r=3 The building is design for wind load, seismic load, axial load capacities etc.

27. OUTLINES OF DESIGN: Shear strength. Unfilled Panel = 14.4 kN /m Filled Panels = 50.0 kN /m Axial strength. Unfilled Panel = (68-0.9e) kN Filled Panels = (600-13.75e) kN Out of plane bending moment capacity. Unfilled Panel = 1.40 kNm /m Filled Panels = 2.83 kNm /m

28. COMPARATIVE STUDY OF MATERIALS The total saving of about 50% is observed

29. COMPARATIVE STUDY OF COST OF CONSTRUCTIONS Total cost savings of 30% is observed

30. CONCLUSIONS Use of GFRG panels as an alternative building material is concluded to be an important step towards the development of rapid, eco-friendly, low cost construction activities. The work carried in concluded that there is saving in cost of construction up to 30-40% The saving in materials is around 50% It is also concluded that GFRG buildings having more axial and inplane bending moment capacity than conventional buildings. The use of GFRG panels as an alternative has solved the problem of disposal of gypsum waste having a capacity of 2000 tones/ day to some extent.