Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Flexural strength and punching shear resistance of ferrocement slab. The strengthening of reinforced concrete beams using ferrocement laminates attached onto the surface of the beams has been carried out by paramasivam, lim and ong 2. Ferrocement panels, lightweight slabs, sandwich concrete slabs, aerated core. Ismail5, fathoni usman1, nur liyana mohd kamal 1, ahmed h birima, zarina itam1, o s zaroog4. However, before deciding to build a water tank of ferrocement, it is advisable to compare the total costs material, labor, transportation, installation and maintenance, based on relevant local.
Guide for the design, construction, and repair of ferro. Different types of reinforcement are used, including wire, wire mesh and steel bar. The day started with an introductory lecture on ferrocement by dr. Introduction in 1943 pier luigi nervi tested and presented in his paper, a new structural elements, an extremely thin plate of concrete made of layers of small diameter wire mesh and cement mortar with sand used as the binder. Quality of ferrocement works are assured because the components are. Ferrocement or ferrocement is a system of construction using reinforced mortar or plaster lime or cement, sand and water applied over an armature of metal mesh, woven expandedmetal or metalfibers and closely spaced thin steel rods such as rebar. The ferrocement layers can resist fire and crack propagation at 700c for 30 minutes. The major variables studied in this investigation included the number of cfrp strips and their configurations. Ultimate and service behavior of ferrocement roof slab. What design procedure should i follow to design a ferrocement beam to span 20, 30 or 40 feet. Flexural behaviour of ferro cement slab panels using.
They are usually cheaper to build and require less skilled labour. Ferrocement is a type of thinwall reinforced concrete commonly constructed of hydrauliccement mortar reinforced with closely spaced layers of continuous and relatively small wire mesh. The slab panel size was 700mm x 300mm x 25mm and 30mm. The ferrocement in guise of planks has been also used for. Ferrocement or ferroconcrete is a type of thin reinforced concrete component where small diameter wire meshes uniformly throughout the cross section. This is an important issue that could impact the performance and strength of space trusses. Reinforced concrete design 1 design of slab examples. The structural behaviour of hcwa ferrocementreinforced. Pdf analysis of ferrocement slabs using finite element. The effect of thickness and mesh spacing on the impact resistance of ferrocement slab zakaria che muda 1,3, md ashraful alam, agusril syamsir1,sorefan sulleman2, salmia beddu 1, kamal nasharuddin mustapha3, sivadass thiruchelvam4, firas b. Increasing the volume fraction might cancel that observation. The proposed slab system consisted of conventional reinforced concrete slab topped with a layer of high strength ferrocement composite containing various contents of hcwa by total weight of binder.
This study was conducted to investigate the effect of carbon fibre reinforced polymer cfrp on the stress responses of ferrocement slabs. Dharanidharan assistant professor, department of civil engineering, sri shanmugha college of engineering and. The concrete slab is usually placed on top of compacted sand. For other types of reinforcement, such as expanded metal, srl and srt may be unequal. Reinforced concrete sk 33 section through slab showing stress due to moment. They are able to withstand shock better, as ferrocement is more flexible. The combination of 1 layer of weldmesh and 4 layers of chicken mesh of geopolymer. By lunch, the fifteen groups had put up their designs for display. Ferrocement has a very high tensile strengthtoweight ratio and superior cracking behavior in comparison to conventional reinforced concrete. A successful case history of the construction of the main dome 22 dia for a sikh temple is discussed in this paper. As an example, a ferrocement tank manual describes the construction procedure for.
Figure 2 shows the fabrication of ferrocement panel in progress. The cement is typically a very rich mix of cement and sand in a 3. Large ferrocement water tank unhcr, july 2006 5 use of ferrocement tanks, though it fulfills most of the criteria above, is still limited in refugee operations. Pdf experimental investigation on the ferrocement slabs with a. Experimental investigation of ferrocement panel under. To accomplish this objective, an experimental program was conducted and theoretical model was.
Ferrocement is a construction material consisting of wire meshes and cement mortar. Ferrocement slabs, fire tested, with 2 meshes lays showed less resistance to penetration compared to nonfire tested slabs. The flexural behavior of bamboo based ferrocement slab panels reinforced with chicken wire mesh layers has been studied to improve the serviceability limit. Both material and geometric nonlinearities are considered in the analysis. Slab panels of size 200550 with thickness 25 mm are reinforced with. The aim of this research paper is to study the ultimate and service behavior of ferrocement roof slab panels. Ferrocement is a quick and easy method to build foundation forms in difficult areas.
The current paper presents the experimental models of ferrocement. The test results of six simply supported roof slab panels are presented. Can i build a ferrocement roof slab or floor slab that is say 10 feet square unsupported. This paper is concerned with the application of finite element techniques to the nonlinear analysis of ferrocement slabs.
Applying the ferrocement concept in construction of. Experimental study on light weight ferrocement beam under monotonic and repeated flexural loading naveen and suresh 2012 it is reported that the light weight ferrocement is a composite material consisting of cementsand mortar matrix along with light. Ferrocement slab panels of size 900 mm x 300 mm x 25 mm were cast with mesh embedded in cement mortar. Experimental and numerical analysis of ferrocement rc composite. The floor may be a concrete slab or wooden joists covered with plywood. Additionally this book does not tell me what is the safe unsupported span of ferrocement slabs in relations to their thickness, reinforcement etc. The metal commonly used is iron or some type of steel. Ferrocement is being used in many residential, industrial and marine applications. The current paper presents the experimental models of ferrocement slabs with and without steel sheeting and their numerical models using the finite element method. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. Ferrocement, ferrocement construction, ferrocement design. A design and construction manual for wirereinforced ferrocement jars by catholic relief services 1. The authors conclude that the load carrying capacity of scc ferrocement slab panel with 0.
Water tanks of ferrocement in most situations, ferrocement water tanks are less expensive than reinforced concrete, metal or even asbestos tanks. It provides technical information on materials and material selection, design criteria and approaches, construction methods, maintenance and repair procedures. The ultimate strength theory as applied to this framework has the following assumptions. Experimental and analytical model of ferrocement slabs. Applications of ferrocement in construction is vast due to the low self weight, lack of skilled workers, no need of framework etc. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. Slab panels of size 550200 with thickness 25 mm are reinforced with welded square mesh with varying no of layers of mesh. Experimental study on ferrocement slabs externally. The number of cracks developed in slab at first cracking is 5, 3, 4 and 7 for ratio 1.
Study on ferrocement slab with different meshes for flexure. Slab reinforcement detailing one way or two way3 youtube. This paper presents the details of the flexural behaviour of selfcompacting concrete scc ferrocement fiber reinforced slab panels. Pdf use of ferrocement panel as reinforced concrete slabs with. Pdf on nov 6, 2014, nadim abushawashi and others published use of. Ferrocement slabs were made with expanded metal mesh.
The slab was carefully placed on the simple supports. Capacity, weight, and cost compaiison of ferrocement water tanks are shown in table 2. Experimental investigation on ferrocement composite slab. The mesh may be made of metallic or other suitable materials. The slab has to carry a distributed permanent action of 1. Temperature variation in vermiculite infilled ferrocement slab. Fcp 1l ferrocement panel made with single layer crimped wire mesh embedded in cement mortar. The ferrocement mortar was thus prepared by mixing sand and cement in the ratio of 2. The distribution of stress across the section is linear. Ferrocement consists of metal reinforcement sandwiched between thin layers of cement mortar. Floor on nervures with lost shuttering in ferrocement an important field for using the ferrocement is the one of the lost shuttering fig. This paper presents the results of an investigation aimed at developing reinforced concrete beams consisting of precast permanent ushaped reinforced mortar forms filled with different types of core materials to be used as a viable alternative to the conventional reinforced concrete beam.
A plastic vapor barrier and insulation add greatly to comfort. High water proofing coating used in bamboo which resists corrosion and reduces the crack. Increasing in volume fraction increased the fire resistance effect slabs. Find the following parameters for design moments in step 2 per unit width step 4 note. Design of slab for flexure 067 m unit width of slab. Such forms are also successfully used to build magnificent supporting girders. Pdf experimental investigation on the ferrocement slabs. A total of 24 slabs have been tested under flexural loading. Design, analysis and construction of precast ferrocement. This paper addresses the composite action between the ferrocement slabs and steel sheeting.
A total of six numbers of oneway composite slab prototypes were subjected to. The participants were then asked to develop and make sketches of their designs, in groups of three or four. Review of research on the application of ferrocement in composite. The reasons for this include inadequate knowledge about andor exposure to the technology which is relatively new. The no of layers used are two, three, four and five. The objectives of this guide, in conjunction with aci 549r, are to promote the effective use of ferrocement in structures, provide architects and engineers with the necessary tools to specify and use ferrocement, and provide. Ferrocrete ferrocrete is a form of reinforced concrete using closely spaced multiple layers of mesh andor small diameter rods completely infiltrated with, or encapsulated in, mortar synthetic compound composed of a mix of metallic alloys, ceramic polymers and stone has. For this purpose a total of 14 ferro cement slabs with sifcon of size.
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