Filler slab construction, which reduces the self-weight of slabs and has reduced loads along the rest of the load path up to foundation, is an effective way for cost reduction. Moderate temperatures in the fall are optimal for crack sealing performance. can achieve longer spans than traditional flat slabs, are lightweight, reusable and are manufactured to exact specification. For example, reducing a six inch thick floor slab to five and one-quarter inches reduces the load-carrying capacity of the slab by roughly 23 percent assuming all other factors are constant.3 However, this reduction should not be a serious concern because the concrete strength of the as-built slab and stiffness of the support system beneath the slab typically exceed the design values used to establish the slab thickness. (Contractors often use 2x4's or 2x6's to frame in the area of a new slab pour and fill to the top of the boards) and Anderson, R. A., Designing Floor Slabs on Grade, 2nd Edition, The Aberdeen Group, 1996, pg. The spacing between two consecutive ribs ranges from 600 mm to 1500 mm. AbstractThe void slab is a simple concept to remove excess concrete from the expensive parts of the structural slab. These are simple type and these shear walls under forces and horizontal shear along its length are subjected to bending and shear. While constructing a building we must aware about the safety of the environment by promoting more ecofriendly construction in our world. Slab thickness minimum 112.5 mm. Enhances thermal comfort inside the building due to heat-resistant qualities of filler materials and the gap between two burnt clay tiles. It is further recommended that joint spacing be limited to a maximum of 15 feet [4.5 m]. First of all, you will need to determine roughly how large that void is. Step 4: Prepare the Void Filler Now you need to prepare the material that you will use to actually fill the void. Therefore, if you are looking for the best quality quartz countertop, you're likely to spend between $75 to $150 per square foot. The use ofexpansivedirt under a concrete slabcan bea big cause for concern. TheWafflemat Foundation Systemis usedin both residential and commercial applications. However, they took exception with ACIs -3/4 in. I built a 30 x 36 garage 3 years ago and had the same concerns. The whole weight of the building is taken away by the selfweight of the reinforced concrete. . Eg. In the context, with the use of waste material in building construction and solving its disposal problem, a technology has been developed at the Central Building Research Institute (CBRI), Roorkee, India, to build reinforced floor/roof slab with multiple materials as filler material. Create an interesting look tolerance for a 1.0 standard deviation. Thus the filler slab as the roof has the following advantages: Consumes less concrete and steel due to reduced weight of slab by the introduction of a less heavy, low cost filler material like two layers of burnt clay tiles. Advantages. Download this document that lists 10 Things to Know About Concrete Fiber-Reinforcement. This paper discusses about the benefits of filler slab when considered over a conventional slab, considering the parameters of thermal performance, materials, construction technique and acoustical benefits. Actual slab thicknessMeasured slab thicknesses indicate most slabs are much thinner than specified. In order to reduce the usage of concrete and self-weight of slabs, usually preferred slabs are voided slabs or hollow slabs. In order to make a structure seismic resistant, engineers opt for ductile design, ductile detailing, shear wall construction, etc. The Wafflemat Foundation System is designed to accommodate expansive soils. The filler material is quite thick, so there needs to be a clear line of sight from the pump to the holes, so to speak. . is designed to accommodate expansive soils. Under no circumstances are slabs to be constructed on uncontrolled fill. less than the specified thickness and the average standard deviation for the slab thickness was about 1/2 in.2 The average standard deviation reported was centered on the -3/8 in. Convert a measurement in inches to a measurement in feet. Open first storey is a typical feature in the modern multistory constructions in urban India. Suprenant, B.A. To convert 34ft x 60ft into cubic yards you have 2040 square feet, and if the slab is 4 inches thick = 680 cubic feet, and divide this by 27 cubic feet per cubic yard, would yield 25.19 cubic yards. Support systemThe support system consists of the base, sub-base and sub-grade. Eg. Sangeeta Das. 60 yards, and it costs $25 per yard, so I'm looking for ways to save money if possible. Concrete slabs may be constructed on filled sites only where the placement of the fill has been strictly controlled. Journal of emerging technologies and innovative research, 2020. In order to make a structure seismic resistant, engineers opt for ductile design, ductile detailing, shear wall construction, etc. Benefits of Filler Slab over R.C.C Slab. For fast estimates I take the square footage of the pour Continue Reading 1 1 The. Uses of Flat Slab These slabs are primarily useful for parking garages, ramps, highrise buildings, hotels, and industrial structures. Expansionthene is a Closed Cell Expanded Polyethylene Foam supplied in sheet form or cut to slab depth/wall thickness as required. Eg. Wafflemat not only delivers superior performance when compared to other foundation systems but additionally also delivers significant cost saving by reducing soils prep, concrete, reinforcing steel, and building cycle time. in Civil Engineering from Clarkson University and several years of design and construction experience serving both public and private clients. thickness tolerance, youll need better quality control than the contractors that installed the slabs where 30,000 date points were measured. GeoSpan acts as a compressible medium for applications such as under concrete grade beams, structural floor slabs, & against foundation. The basic need of everyone in this world is shelter, but not everyone has the sufficient finance to construct their dream home and have some limitations. Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. Sometimes the best fill for a concrete slab is the type that will cost you nothing no fill at all. ACI 117-10 does not specify a plus slab thickness tolerance but does specify a 3/4 in. Calculate the square footage by measuring the length and width of the area to be covered. Three standard deviations on a Bell Curve (standard normal distribution) show 99.7 percent of slab thicknesses would fall within the 1 in. Two-way slab is designed; the filler blocks are placed between the reinforcement spacing by providing a cover of 20mm. 1) PUBLISHED BY, COMPARATIVE ANALYSIS OF R.C. Every new build or addition must start with a strong foundation. If they are not separated the risk that the slab may develop unsightly cracks along the wall edge is increased. Slab thickness minimum 112.5 mm. What Makes the Wafflemat Foundation System Different? The slab-on-ground thickness tolerance sets both an average thickness for all samples measured and a minimum thickness for individual samples. A compressible filler strip, nominally 12 mm thick, is used as an impervious separation strip. Slab-on-grade floor and pavement panels shrink less and have almost no curl. Bringing in fill dirtis not always necessary; with, , it is possible to use the native soil that. Enhances thermal comfort inside the building due to heat-resistant qualities of filler materials and the gap between two burnt clay tiles. depth = 20 8000/20 = Eff depth = 400mm Sometimes the designer may specify a sub-base consisting of crushed rock, gravels, select or stabilized soils to help stiffen the support system, especially if the sub-grade or existing soils are of poor quality. What does all this mean? average standard deviation for the measured slab thicknesses, Suprenant and Malisch state a 1 in. It has gained popularity in Europe and Asia. The granular material serves as a capillary break and a place to "store" the water until it can be absorbed back into the surrounding soil. Typically, coarse clean sandy soils are used for this purpose. , is your best option. Northern Railway Specification 2010 Vol I & II, International Journal of Scientific Research in Science, Engineering and Technology IJSRSET, IJSRD - International Journal for Scientific Research and Development, An Overview of Confined Masonry Structures as Seismic Resistant Structure, Study on Flexural Behaviour of RCC Slab Filled with Hollow Roofing Tiles, Comparison of Static and Dynamic Response of Conventional RC and Stainless Steel Encased Concrete Column Structure, A Study on Sustainable and Cost Effective Building Construction in Housing Sector, Pancreas adenocarcinoma CT texture analysis: comparison of 3D and 2D tumor segmentation techniques, CHOICE OF CONSTRUCTION TECHNOLOGIES REGION WISE RECOMMENDED TECHNOLOGIES FOR HOUSING IN DIFFERENT GEO-CLIMATIC ZONES IN URBAN AREAS, VIII SEMESTER CIVIL CE2045 PREFABRICATED STRUCTURES BY M.DINAGAR, AP/CIVIL MAHALAKSHMI ENGINEERING COLLEGE UNIT II -PREFABRICATED COMPONENTS, ANNEXURE 4 ECO-FRIENDLY BUILDING MATERIALS AND TECHNOLOGIES Eco-housing Assessment Criteria -Version II, GOVERNMENT OF INDIA CENTRAL PUBLIC WORKS DEPARTMENT CPWD SPECIFICATIONS (VOL. The Basics of Concrete Grinding, Honing & Polishing. And also various researches are now conducted in several places to reduce the cost of building construction. Such slabs have benefits such as. Next step is to prep for the slab. Enter the email address you signed up with and we'll email you a reset link. Keeping health and safety first helps eliminate risk, injury, and delays so you can keep your jobsites moving and your business profitable, A 4th Generation Mason's 'Top 10' Tool List for Your Next Concrete Job. Before the slab is constructed the minimum bearing pressure of the fill must be tested. Makes saving on cost of this slab compared to the traditional slab by about 23%. Bases for slabs-on-ground must be smooth, hard and compacted. tolerance for the average of all samples. Based on 30,000 measured data points reported by Suprenant and Malisch, the average slab thickness was about 3/8 in. Linear static and linear response spectrum analysis is carried out to study the response of the structure under. India is a developing country so various constructions are taking place in our country day by day. Through this we can maintain sustainability. TolerancesACI 117-10 states1: 4.4.5 Fine grade of soil immediately below slabs-on-ground 3/4 in. Product Description MONOKOTE MK-6 HY and MK-6s are single component, spray applied, mill-mixed fire resistive plasters. Abstract: in modern period of technology to get maximum advantages of structural member under earthquake is the priority. A change in the actual thickness of the floor does affect the load-carrying capacity of the slab. thickness tolerance may not be achievable for 100 percent of the slab. Concrete slab thickness for Hotel building:-Concrete floor slab thickness is not depending on how tall/hight of building, it's depends on material, Engineering, load acting on it and span, need proper design, what kind of material should be used. The qualities of native soils might not always be favorablefor building,andtheyvary distinctively from region to region. A filler slab with two stacked clay tiles as shown in the sketch above also increases the thermal insulation of the slab. Individual sample -3/4 in. Premier Claycut Integrators - Offering Maruthi Clay Premier Natural Roof Slab Filler Tile, Dimensions: 14 X 9.5 X 3 Inches at Rs 1/piece in Bengaluru, Karnataka. For a room size 3m x 4m ,reduction in the dead weight by replacing concrete using different filler materials 1.Stabilized mud blocks - 15.02% 2.Mangalore tiles 19.66% 3.Burnt bricks 20%. The filler slab can be designed like a conventional RCC slab as per IS 456-2000 design guidelines,The thickness offiller material should not exceed the depth of the neutral axis. As concrete in tension zone is replaced by filler material of lesser density, dead weight of the slab is reduced. Composite construction is increasing rapidly so the proper dynamic design should be needed to reduce the damage during the earthquake. If the conditions are not favorablefor construction,the project will require some subgrade preparation for concrete slabs. #Slab#Reinforcement !! Hence we need to find out an efficient method to provide strength to soft storey in multi-storied buildings. Wafflemat, a Smartsense structural system, Get a Free Concrete Foundation Build Guide, Installing Post Tension Cables in your Wafflemat Foundation, How to Pour Concrete in your Wafflemat Foundation, Wafflemat Slabs Provide Superior Performance, Lowering the Carbon Footprint When Using Wafflemat, Four Steps to Estimate the Volume of Concrete Used in a Wafflemat Foundation, Saving Thousands of Gallons of Water During Construction with Wafflemat, How to Install Post Tension Cables in your Wafflemat Slab Foundation, Carbon Footprint Analysis for Foundation at Laie Marriott.
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