The floor slab is reinforced with grouted posttensioning tendons and nonprestressed reinforcement. Concrete floor slab construction process includes erection of formwork, placement of reinforcement, pouring, compacting and finishing concrete and lastly removal of formwork and curing of concrete slab. Filler slab roof construction where inverted hemispheres of terra cotta. Nevertheless, the following basic steps would apply to all lift slab jobs. Carbon dioxide, produced from burning of fossil fuels, is the principle greenhouse gas and efforts are being. This easytoapply, 100% acrylic latex waterbased product is textured. There are 16 different types of slabs in construction. The concrete pour usually takes a day but the process leading up to the pour can take weeks to prepare.
Concrete slabs concrete per square foot slab concrete volume cy per square foot slab slab thickness in c o n c r e t e v o l u m e c yc u b i c y a r d s p e r s q u a r e f o o t s l a b 0 50 100 150 200 250 300 350 0. The main advantage is the possibility of long spans due to the significant reduction in own weight, as well as the fast construction sequence with the use of flat slab formwork systems. Construction procedures using the lift slab technique would vary with the size, height and type of building that is being erected. Another approach to diy cement slab construction is monolithic concrete slab or monolithic slab show some quick way to. A rc filler slab with nonautoclaved cellular concrete blocks. Stabilization and repair of concrete slabsonground deformed.
Refer to aci 223r for guidance on isolation joints for slabs using shrinkagecompensating concrete. Hence this work highlights on the behaviour of filler slab using self. This construction is suitable in reasonably stiff soils or marl. Property ownercontractor is responsible for providing proof of property boundaries by locating existing property markers or by a registered land surveyor. In this work i have shown the demonstration and use lightweight filler material which can be accommodated in of fillerslab in building construction to reduce. Pdf filler slab as a continuous tbeam slab low cost as. Use of costeffective construction technologies in india to mitigate climate change nilanjan sengupta concentration of greenhouse gases play major role in raising the earths temperature. Bubble deck technology uses less concrete by filing the slab with beach balls this is a really clever idea that takes out all the stuff in the middle that you dont really need, and replacing it.
The reason why, concrete and steel are used together to construct rcc slab, is in their individual properties as separate building materials and their individual limitation. Guide to concrete floor and slab construction reported by committee 302 dennis c. The development of these methods was a necessity due to different causes. The information presented here accurately describes the insulated concrete form icf framing process and the way these construction systems are incorporated into homebuilding.
Reported by committee 302 american concrete institute. Filler slab technology is a simple and a very innovative technology for a slab construction. Past performance of local streets is also an excellent source for establishing joint design. Design, manufacture and construction of buildings with.
Start studying chapter 14 site cast concrete framing systems. Types of construction loads on composite slabs and calculation. The construction loads on the composite slab during concreting is composed of the weight of worker, fresh concrete, pipelines, formworks and load bearing elements, weight of small equipments, and impact. Pouring concrete slab whether it is concrete slab floor, concrete patio slab, or monolithic slab requires very careful planning. While taking up construction, most fail to appreciate the difference and end up spending quite a bit of their money. The filler slab is based on the principle that for roofs which are simply supported, the upper part of the slab is subjected to compressive forces and the lower part of the slab experience tensile forces. Concrete slabsonground foundation systems may be subject to detrimental deformation due to upward thrust from expansive soils. The cracks are caused by the concrete shrinking as it cures or goes hard.
Framing a new wall and door isnt too complicated, but it does take attention to detail and some measurements. Poured slab a proper termite pretreatment requires the pmp to make a minimum of two, sometimes three, trips to the job site. For spans over 9 m posttensioning should be considered. Enhances thermal comfort inside the building due to heatresistant qualities of filler materials and the gap between two burnt clay tiles. Application of rcc filler slab floors and roofs ijrerd. A new look for concrete through the liftslab technique. Moreover, improvements to past designs using current technology can significantly improve performance. Different strengthening techniques have been developed so far for the reinforced concrete slabs with or without cutouts. Use of costeffective construction technologies in india to. Flooring and roofing play a major role in the construction of dwellings. Background the ground floor of roya building is constructed with a 300 mm posttensioned slab, using grouted tendons.
To this end, visits were made to con struction sites and slab manufacturing plants, and interviews were held with designers, manufacturers, construction site engineers, builders and workers helpers, bricklayers, and master builders. A rc filler slab with nonautoclaved cellular concrete. The procedures discussed will get you prepared for pouring concrete slab as well as concrete slab leveling. Slab combines the durability, flexibility and adhesion you need for lasting concrete crack repairs. For this example, three linear load cases will be created. A rc filler slab with nonautoclaved cellular concrete blocks for sustainable construction m. Pdf fillerslab as a continuous tbeam slab ayush srivastava. Filler slab as a continuous tbeam slab low cost as well as increased strength. Once cracks have formed it is normally too late to install sawn joints or tool joints so we always recommend sawing the slab as soon as possible after pouring. Rcc slab, rc filler slab, mangalore tile, strength, stiffness.
Pdf filler slab as a continuous tbeam slab low cost as well as. Concrete strip footing and concrete base with timber construction. The slab is supported on interior columns and a perimeter wall extending along the entire. Youll need several long pieces of twobyfour lumber to cut for making the frame. Traditional solutions for strengthening reinforced concrete slabs. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A type of precasting used in building construction involves casting floor and roof slabs at or near ground level and lifting them to their final position, hence the name liftslab construction. Aug 06, 2015 filler slab technology is a simple and a very innovative technology for a slab construction. Footing concrete slab prior to pouring of concrete.
In order to consider the temperature gradient along the thickness of the slab, the plate element of plain concrete was subdividedinto layers. Proper and timely construction practices, in addition to. A new slab system with precast latticereinforced joists began to be developed in germany in the mid20th cen tury, using brick blocks as filler. Some of them are outdated and many of them are frequently used everywhere. Thickened slabs and thickened edges excavation cee 431 construction contracting page 1 of 10 11901. Cracking in groundsupported post tensioned slabs on. Common design methods for these slabs assume an uncracked section, where slab. It is a biaxial reinforced concrete flat slab system, with a grid of internal spherical void formers. An acceptable arrangement for a foundation of a small timber building with a concrete or wood floor is shown in these figures. Stabilization and repair of concrete slabsonground deformed by expansive soils.
Design and construction of joints for concrete streets. Filler slabs are one cost effective roofing system which is based on the concrete portions and instead placing filler material there. The procedures for preparing floor slabs on grade at or near ground level are described in concrete slab construction. In areas with poor soils, the contractor does not have to find a source of good fill. Some concrete repair products are tough, but dont stick, while others are flexible but dont last. The formwork shall be designed to withstand construction loads such as fresh concrete pressure and weight. Pouring concrete slab, concrete patio slab, concrete slab floor. Demonstration homes, provides builders with practical information based on actual experiences with these materials. Use a premolded joint filler with a removable top portion. Slabs and flat slabs lecture 5 19 th october 2016 contents lecture 5 designing for shear in slabs including punching shear detailing solid slabs flat slab design includes flexure worked example exercise punching shear. Chapter 14 site cast concrete framing systems flashcards. Skill construction smart window rendering sand and cement below window with simple tools duration.
Bubble deck technology uses less concrete by filing the. Diy concrete slab, concrete slab construction, pouring. Two, erect columns with special collar attachments. Concrete is good in taking compression and steel is good in tension. Cracking in groundsupported posttensioned slabs on expansive soils by ken bondy1 1 introduction posttensioned slabs are widely used as foundations for light residential construction in areas of expansive soils.
Slab is the concrete crack repair sealant youve been waiting for. In this work i have shown the demonstration and use of fillerslab in building construction to reduce cost of. The concept doesnt come in the way of structural strength and gets things done in an economical way there is a lot of difference between cheap construction practices and cost effective ones. Study on flexural behaviour of rcc slab filled with hollow roofing. Liftslab construction is a precast method of construction of slab on the ground and then lifting it to the structure. Makes saving on cost of this slab compared to the traditional slab by about 23%. Reduces use of concrete and saves cement and steel by about 40%. Footing concrete slab to be made after all form work is set up and reinforcement is in place, but prior to pouring of concrete. Filler slabs are one cost effective roofing system which is based on. Singh central building research institute, roorkee, india abstract flyash is a major industrial waste which pollutes the atmosphere. In order to enable the model for construction stages access the project settings and change the model type to construction stages.
In this article, ill give a detailed explanation of each slab where to use particular slab. Eliminating drops results in simpler falsework and formwork arrangements, enabling rapid floor construction and giving maximum flexibility to the occupier. There are two basic forms of construction with speci. The reason why, concrete and steel are used together to construct rcc. Construction considerations construction of a raised foundation is easier to schedule because the concrete and masonry work do not have to wait on plumbing installation and inspection, as is the case with slab foundations. It can arise also from calculations or by comparisons with similar build. Filler slab is a low cost structure reducing the dead weight leads to economy in overall. Modeling cracks of reinforced concrete slabs under fire.