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    Module 2 Filler Slab

    Uploaded by

    Shahnaaz Syedi
    This document discusses the use of filler materials in reinforced concrete slabs to reduce costs and environmental impact. It notes that concrete usage can be reduced by replacing part of the slab's tension zone with lightweight, inexpensive filler materials. Three potential fillers are identified: granite dust, foundry sand, and discarded plastic. The construction process places reinforcement bars over shuttering, then filler blocks with a concrete pour over top. This technique aims to reduce concrete and steel usage through a lighter-weight slab design. Benefits include cost savings, lower embodied energy, and potential thermal improvements if a cavity is incorporated.

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    Download as PDF, TXT or read online from Scribd

    Module 2 Filler Slab

    Uploaded by

    Shahnaaz Syedi
    34 views19 pages
    This document discusses the use of filler materials in reinforced concrete slabs to reduce costs and environmental impact. It notes that concrete usage can be reduced by replacing part of the slab's tension zone with lightweight, inexpensive filler materials. Three potential fillers are identified: granite dust, foundry sand, and discarded plastic. The construction process places reinforcement bars over shuttering, then filler blocks with a concrete pour over top. This technique aims to reduce concrete and steel usage through a lighter-weight slab design. Benefits include cost savings, lower embodied energy, and potential thermal improvements if a cavity is incorporated.

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    MODULE 2 FILLER SLAB

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    This document discusses the use of filler materials in reinforced concrete slabs to reduce costs and environmental impact. It notes that concrete usage can be reduced by replacing part of the slab's tension zone with lightweight, inexpensive filler materials. Three potential fillers are identified: granite dust, foundry sand, and discarded plastic. The construction process places reinforcement bars over shuttering, then filler blocks with a concrete pour over top. This technique aims to reduce concrete and steel usage through a lighter-weight slab design. Benefits include cost savings, lower embodied energy, and potential thermal improvements if a cavity is incorporated.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    34 views19 pages

    Module 2 Filler Slab

    Uploaded by

    Shahnaaz Syedi
    This document discusses the use of filler materials in reinforced concrete slabs to reduce costs and environmental impact. It notes that concrete usage can be reduced by replacing part of the slab's tension zone with lightweight, inexpensive filler materials. Three potential fillers are identified: granite dust, foundry sand, and discarded plastic. The construction process places reinforcement bars over shuttering, then filler blocks with a concrete pour over top. This technique aims to reduce concrete and steel usage through a lighter-weight slab design. Benefits include cost savings, lower embodied energy, and potential thermal improvements if a cavity is incorporated.

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    © All Rights Reserved
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    of 19

    RCC FILLER SLAB

    Ar.Archana Anand
    M.Arch ( Gen )
    INTRODUCTION

    As per the annual reports of Census 2011, around two-thirds of the total Indian
    population cannot afford their shelter .Affordability is one major reason for people
    to go shelter less.
    If houses can be constructed economically by using innovative techniques to
    reduce the consumption of materials, more people can afford to construct their
    own houses.

    Concrete being the highest consumed material on earth after water produced and
    used at a large scale in the construction industry. Ideas to reduce the usage of
    concrete without compromising the quality of construction will not only lead to
    cost-effective buildings but also reduce carbon emissions when looked at a large
    scale.

    NEED FOR ALTERNATIVES


    To reduce the harmful effect, sustainable technology is required. This technology
    is used to remove a substantial portion of concrete in the tension zone and
    replace it with lightweight, inert and inexpensive filler.

    This particular technology can not only reduce the cost of the materials but will
    also reduce the amount of carbon emission by lowering the use of energy-
    consuming materials. Overall, it is concluded that 30% of the carbon
    emission is reduced
    FILLER MATERIAL SELECTION
    The filler materials are selected upon satisfying the following conditions:
    • The material must be non-reactive (inert) in nature.
    • The limitation must be applied in terms of water absorption as hydration of
    concrete is affected.
    • It must be lightweight, which will result in the reduction of the overall
    weight of the structure.
    • It must be cost-effective when compared to the cost of concrete replaced.
    • The size and thickness of the material must satisfy the reinforcement
    spacing and the size of the slab.
    • Aesthetic views must be considered to avoid ugly faces of the ceiling

    MATERIALS USED
    Various materials such as
    1. Cement (53 Grade),
    2. M-sand,
    3. Coarse aggregate and
    4. Reinforcement steel
    To maintain a sustainable environment, the materials to be chosen were to
    be of a waste or discarded material, which can help in reusing the waste.
    After researching many materials like the mine waste and many other
    waste, three filler materials were short listed which satisfied the criteria
    and were chosen as filler materials for design and analysis of a filler slab.
    These materials were chosen as they were easily available/accessible,
    locally available in abundant quantities and the process of manufacturing
    the filler blocks with these materials can be done at site with minimum
    cost.
    • Granite dust,
    • Foundry sand and
    • Discarded plastic are the materials chosen for this experimentation.

    FILLER MATERIALS PROCURED


    The shuttering of the slab is placed and held stiff.
    This is followed by the reinforcing bars are placed
    over the shuttering as per design of the slab.
    These bars are tied using binding wire at every
    cross section of the bars and cover is provided at
    the bottom of the bars by using cover clocks.

    Filler blocks are then placed over the shuttering


    proving a cover of 20mm between the
    reinforcement as shown in Fig. Mentioned

    Concrete of M20 grade is prepared and poured.


    Compaction is done using needle vibrator to get
    rid of air voids.

    On completing, DE shuttering should be done


    after 7 days and curing must be done for 28 days
    to attain its strength.

    CONSTRUCTION OF FILLER SLAB


    PRINCIPLE

    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 Thus the lower tensile region of the slab does
    the slab experience not need any concrete except for holding the
    tensile forces. steel reinforcements together. Therefore in a
    Concrete is very good conventional RCC slab lot of concrete is
    in withstanding wasted and it needs extra reinforcement due to
    compressive forces added load of the concrete which can otherwise
    and steel bears the be replaced by low-cost and light weight filler
    load due to tensile materials,
    forces
    WHAT IS AN EMBODIED ENERGY ?

    - Energy consumed in the production of basic building materials


    - Energy needed for transportation of the building materials
    - Energy required for assembling the various materials to form
    the building

    - Embodied energy calculations for 200 SQ.M Slab of 100mm


    thick
    BENEFITS

    Consumes less concrete and steel due to reduced weight of slab


    by the introduction of a less heavy , low cost filler materials.

    It can also be applied to mass housing projects to gain high cost


    saving in high energy consuming materials

    Better Thermal comfort if a cavity is kept b/w the filler martials

    Create Aesthetically pleasing ceiling


    ASSIGNMENT 01

    Find out the properties and rate of RCC FILLER MATERIALS


    in market

    - MANGALORE TILE
    - COCONUT SHEELS
    - GLASS BOTTLES
    - POTS

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