đCONCRETE MATURITY TESTING METHOD
đˇMaturity is a non-destructive approach to testing concrete that allows you to estimate the early-age and compressive strength of in-place concrete in real-time.
âşThe maturity method is defined on ASTMC1074: Standard Practice for Estimating Concrete Strength by the Maturity Method, as âa technique for estimating concrete strength that is based on the assumption that samples of a given concrete mixture attain equal strengths if they attain equal values of the maturity index.â
It is based on the idea that the strength of concrete increases with time, and that this increase in strength follows a predictable pattern.
This pattern is known as the "maturity curve," which is a plot of the strength of the concrete as a function of time.
The maturity curve is determined by conducting experiments in which concrete specimens are cured under controlled temperature and humidity conditions, and the strength of the specimens is measured at various intervals.
Via Yonatan PMPÂŽ
@etconp
đˇMaturity is a non-destructive approach to testing concrete that allows you to estimate the early-age and compressive strength of in-place concrete in real-time.
âşThe maturity method is defined on ASTMC1074: Standard Practice for Estimating Concrete Strength by the Maturity Method, as âa technique for estimating concrete strength that is based on the assumption that samples of a given concrete mixture attain equal strengths if they attain equal values of the maturity index.â
It is based on the idea that the strength of concrete increases with time, and that this increase in strength follows a predictable pattern.
This pattern is known as the "maturity curve," which is a plot of the strength of the concrete as a function of time.
The maturity curve is determined by conducting experiments in which concrete specimens are cured under controlled temperature and humidity conditions, and the strength of the specimens is measured at various intervals.
Via Yonatan PMPÂŽ
@etconp
đ10â¤2
đá á°á á á ᣠáĽááŤá áľáłá˛á¨á
đˇá˘áľáŽáľáŤ á¨á ááľáľ á ááľ á áá á¨ááŤáá°á 37ááá á¨á ááŞáŤ áá፠ááááááľ á¨áŤáá˝á áĽá áľ áááłáŤáľ áĽá¨áśá˝ áĽá¨á°áŤááą ááá á°áááá˘
âşá á áá áááľáľá áś/á áá˘á á á ááľ áᏠá¨á ááŞáŤ áĽáá áłáľ áŽááá´áŹá˝á (áŤá) ááŹááłááľ ááľáŞáľ ááľá´áá áĽá á¨áŤá áĽáŤ á áľááá áŽáá´ á¨áá°á á ááŤáŽá˝ áá á ááá á áá ááá áá áŤááá á¨á á°á á á ᣠáľáłá˛á¨áá á á፠ááĽáá°ááá˘
đ§á áłá áłáľ 2008 á.á áááŁáłá á¨á°ááᨠá¨á á°á á á ᣠáĽááŤá áľáłá˛á¨á 62 áşá á°áá˝á á ááá á á¨ááŤá á á á áŤáá á˛ááᣠá¨ááááŞáŤ áááŤá áááŁáł á¨á°á ááá á áá á á áᥠááá°áá áááŤá á°ááᎠá ááŤááľ áá ááááá˘
âşá á áá áááľáľá áá˘á á áááľ (áś/á) á ááá¸á áŁá°á¨ááľ áĽá¨áľ á¨áá áááᏠá¨ááŤáľáááá¸á á¨ááá°á áááŤá áĽááŤáá˝á á᪠á¨á°áŁá áŠáľ á á¨áĽ á¤ááŹáśá˝ ááááĽáľ ááá¸áá ááľáááą á¨ááłááľ ááá˘
đŤá¨áľáłá˛á¨á áááŁáł ááá á áá á¨áĽáá áłáľ áá á á (áá) áĽá á¨áŚáááá á¨ááłáá˝ ááľá°áááľ á áá˝á á°á¨á ááá°áá áááŤá áĽá¨á°ááᣠáĽáá°ááá áłáááá˘
đááĽááŤá áľáłá˛á¨á áááŁáł áááááŞáŤá áááŤá á¨4 á˘ááŽá áĽá á áá á᪠á¨á°á°á¨á á˛ááᣠá¨ááá°áá áááŤá áááŁáł áŁáŞáŤ ááá áľáŁ ááá á ááá áᣠá¨á°á á°áŤá˝ ááá áááŁáłáŁ áááá á¨á°á áááľ áŤá፠ááá áᣠáłáááľ á˛áľá°á áááááľáŁ á¨áááŞáá áŚáłáá˝áŁ á¨á°áŤáážá˝ á¨ááááá ááł áĽá ááá˝ áĽáŤáá˝á á ááľáĄ áŤáŤáľáłáá˘
@etconp
đˇá˘áľáŽáľáŤ á¨á ááľáľ á ááľ á áá á¨ááŤáá°á 37ááá á¨á ááŞáŤ áá፠ááááááľ á¨áŤáá˝á áĽá áľ áááłáŤáľ áĽá¨áśá˝ áĽá¨á°áŤááą ááá á°áááá˘
âşá á áá áááľáľá áś/á áá˘á á á ááľ áᏠá¨á ááŞáŤ áĽáá áłáľ áŽááá´áŹá˝á (áŤá) ááŹááłááľ ááľáŞáľ ááľá´áá áĽá á¨áŤá áĽáŤ á áľááá áŽáá´ á¨áá°á á ááŤáŽá˝ áá á ááá á áá ááá áá áŤááá á¨á á°á á á ᣠáľáłá˛á¨áá á á፠ááĽáá°ááá˘
đ§á áłá áłáľ 2008 á.á áááŁáłá á¨á°ááᨠá¨á á°á á á ᣠáĽááŤá áľáłá˛á¨á 62 áşá á°áá˝á á ááá á á¨ááŤá á á á áŤáá á˛ááᣠá¨ááááŞáŤ áááŤá áááŁáł á¨á°á ááá á áá á á áᥠááá°áá áááŤá á°ááᎠá ááŤááľ áá ááááá˘
âşá á áá áááľáľá áá˘á á áááľ (áś/á) á ááá¸á áŁá°á¨ááľ áĽá¨áľ á¨áá áááᏠá¨ááŤáľáááá¸á á¨ááá°á áááŤá áĽááŤáá˝á á᪠á¨á°áŁá áŠáľ á á¨áĽ á¤ááŹáśá˝ ááááĽáľ ááá¸áá ááľáááą á¨ááłááľ ááá˘
đŤá¨áľáłá˛á¨á áááŁáł ááá á áá á¨áĽáá áłáľ áá á á (áá) áĽá á¨áŚáááá á¨ááłáá˝ ááľá°áááľ á áá˝á á°á¨á ááá°áá áááŤá áĽá¨á°ááᣠáĽáá°ááá áłáááá˘
đááĽááŤá áľáłá˛á¨á áááŁáł áááááŞáŤá áááŤá á¨4 á˘ááŽá áĽá á áá á᪠á¨á°á°á¨á á˛ááᣠá¨ááá°áá áááŤá áááŁáł áŁáŞáŤ ááá áľáŁ ááá á ááá áᣠá¨á°á á°áŤá˝ ááá áááŁáłáŁ áááá á¨á°á áááľ áŤá፠ááá áᣠáłáááľ á˛áľá°á áááááľáŁ á¨áááŞáá áŚáłáá˝áŁ á¨á°áŤáážá˝ á¨ááááá ááł áĽá ááá˝ áĽáŤáá˝á á ááľáĄ áŤáŤáľáłáá˘
@etconp
đ13đ3
Ethio Construction Engineering
@etconp
đáĽáľáłáľ áá á¨áá á¨á á¨á ááŞáŤ á ááľááľ áľáá
áľ á¨á°áá°á¨á°á áľ á áłáŤá˝ áĽáľáłáą á°á áá
á áᏠá°áá¨ááĄáĄ
đ§á¨á°áŁá áŠáľ ááááľáłáľ áľáá áľ áá ááá á ááśáᎠáá´áŹáᣠá á áá áááľáľá áá˘á á á ááľáŁ á¨á ááŞáŤ á áĽá¨áľ áŽáá˝á áŽáá˝áá ááł áá áá ááľ áĽáá˛áá á¨á°ááŤáŠ áááŤáľ á ááŁáłá°áŽá˝ á á°ááá áľ á¨áá¨á áľá - áľáááą áĽá¨á°áŤáá° ááááá˘
âşá¨áᏠ61 áááłáľ á ááľ á ááľá á á áŤáŠ á¨á ááŞáŤ á ááľááľ áľáá áľ á¨á áá á¨á ááŞáŤ á áĽá¨áľ á¨á°áá°á¨á°á áľ á á ááŞáŤ á˘áŽááá áŽáá˝á á áĽá áᢠá¨áááá ââá¨á ááŞáŤ á áłáŤá˝ââ áĽáľáłáľ áá áĽáá°áá á ááá¨áá˝á áá ááĄáĄ
âşá¨á ááá áŁáá¤áľ á¨ááá á á°áŁáŁáŠáľ ááááľáłáľ áľáá áľ á¨á ááŞáŤ á˘áŽááá áŽáá˝á(ECA) ááĽáľáłáľ áľáŤá 57 áááŽá áśáá á᪠á áľááááĄáĄ
âşá ááá 61 áááłáľá áŤáľáá ᨠá ááá á áŤáą á ááľ áĽáá°ááá á ááľáĄ á¨áŤáá¸á á ááśá˝á á áá áĽááľ áĽáá á á¨á°áŤáŤáá¸á á ááá áĽáľáłáą áĽááłáľáááá á¨áᏠá áá áááĽááá˝ áááľ áĽáá°ááá á¨áááŁáłá á¨á˛áŞáá á¨á ááŞá´áá¸áŤá áľáŤáá˝ á°ááŁáŁáŞ á¨áááľ á áś ááłá¸á á áá ፠ááá¨ááááĄáĄ
âşáłáŞáŤáá á áá á¨áá á ááá á¨ááá á ááá¨á áá á¨áááľ á áś ááłá¸á á ááľáĄá á ááŞáŤ á¨áŁáááľá á¨á á áááľ á ááľ áĽáá˛áá á ááá áŤááľá ááá á¨ááŤáłá á áá°á á áá˛áľáľ á áááá á°áá á¨á°áłá á¨ááľáłááľ áá áľáá áĽáá˛áá á á á áááá°áá á¨áľá áľáá á°ááŞáá˝ á¨áłá°á°á á¨ááááŞáŤáá á¨á ááŞáŤ á ááľááľ áľáá áľ á¨ááľá¨áł áťáá°á á¨áá¨á á¨32 á¨á ááŞáŤ áááŤáľ ááŞáá˝á á¨ááŤáłá á¨ááááł áá áľááá á¨áᎠ7 á¨áá°ááą á¨áľá áĽá ἠáľáŤáá˝ áĽááłáá á áááááĄáĄ
âşá á°á¨ááŞá 50 á ááś á¨á ááľ áĽáá á¨á°á°á¨ááá¸á á¨ááááŞáŤááš á¨á áĽá¨áą áá°áĽá°á˘áŤ á áłáŤá˝ ááľáĽ áŤá ááá áŽá˝áŁá¨á°ááŤáŠ áááŤáľ á áľáŚáł á¨áá°á á¨á¨áą á ááśá˝ ááĽááł á¨ááááĄá áľ áá á¤áááĽá˝á ááá¨áá áááá áĽááááĄáĄ
âşá á ááá á¨ááááŞáŤ ááá áĽááá á á¨á ááľáá¸áá á˘áľáŽáľáŤ áá áĽá¨áą ááľá¨áł á¨áá áŤáľ á áľá°áጠá¨ááŤáłáŠ á¨áľáá áľáŤáá˝á ááááĄáĄ
âşááá°áá ááá á¨áá á ááŞáŤáááá áĽáá áľáá´á á¨áŠááľáŽá á áľá°áá ጠá¨ááłáá áľá¤á 3áá ááá á°áá á¨á ááŞáŤ á˘áŽááá áŽáá˝áá á¨á°áŁá áŠáľ ááááľáłáľ áľáá áľá áłáŞá á¨ááŤáłáŠ á¨áĽá° áĽá ἠáľáŤáá˝ ááŤááá á áś ááłá¸á áŤáĽáŤáŤááĄáĄ
âşá¨á ááŞáŤ á áłáŤá˝ á áááá ááłáá ááá áľáá´ á°áááĽáśá áĽá 29 áá 1953á.á á°ááá á¨á ááŞáŤ á ááľááľ áľáá áľ áá°áĽá°á˘áŤ á áłáŤá˝ ááá áááľ á áááą á¨á°á á¨á¨á° áĽáá°áá áá á¨á áá á¨á ááŞáŤ á áĽá¨áľ á áá áĽáľá¨áááᣠáľá¨áľ á¨á áĽá¨áą áá°áĽá°á˘áŤ áĽáá°áá áá áłáŞá áááá¨áááĄáĄ
Via Sheger FM
@etconp
đ§á¨á°áŁá áŠáľ ááááľáłáľ áľáá áľ áá ááá á ááśáᎠáá´áŹáᣠá á áá áááľáľá áá˘á á á ááľáŁ á¨á ááŞáŤ á áĽá¨áľ áŽáá˝á áŽáá˝áá ááł áá áá ááľ áĽáá˛áá á¨á°ááŤáŠ áááŤáľ á ááŁáłá°áŽá˝ á á°ááá áľ á¨áá¨á áľá - áľáááą áĽá¨á°áŤáá° ááááá˘
âşá¨áᏠ61 áááłáľ á ááľ á ááľá á á áŤáŠ á¨á ááŞáŤ á ááľááľ áľáá áľ á¨á áá á¨á ááŞáŤ á áĽá¨áľ á¨á°áá°á¨á°á áľ á á ááŞáŤ á˘áŽááá áŽáá˝á á áĽá áᢠá¨áááá ââá¨á ááŞáŤ á áłáŤá˝ââ áĽáľáłáľ áá áĽáá°áá á ááá¨áá˝á áá ááĄáĄ
âşá¨á ááá áŁáá¤áľ á¨ááá á á°áŁáŁáŠáľ ááááľáłáľ áľáá áľ á¨á ááŞáŤ á˘áŽááá áŽáá˝á(ECA) ááĽáľáłáľ áľáŤá 57 áááŽá áśáá á᪠á áľááááĄáĄ
âşá ááá 61 áááłáľá áŤáľáá ᨠá ááá á áŤáą á ááľ áĽáá°ááá á ááľáĄ á¨áŤáá¸á á ááśá˝á á áá áĽááľ áĽáá á á¨á°áŤáŤáá¸á á ááá áĽáľáłáą áĽááłáľáááá á¨áᏠá áá áááĽááá˝ áááľ áĽáá°ááá á¨áááŁáłá á¨á˛áŞáá á¨á ááŞá´áá¸áŤá áľáŤáá˝ á°ááŁáŁáŞ á¨áááľ á áś ááłá¸á á áá ፠ááá¨ááááĄáĄ
âşáłáŞáŤáá á áá á¨áá á ááá á¨ááá á ááá¨á áá á¨áááľ á áś ááłá¸á á ááľáĄá á ááŞáŤ á¨áŁáááľá á¨á á áááľ á ááľ áĽáá˛áá á ááá áŤááľá ááá á¨ááŤáłá á áá°á á áá˛áľáľ á áááá á°áá á¨á°áłá á¨ááľáłááľ áá áľáá áĽáá˛áá á á á áááá°áá á¨áľá áľáá á°ááŞáá˝ á¨áłá°á°á á¨ááááŞáŤáá á¨á ááŞáŤ á ááľááľ áľáá áľ á¨ááľá¨áł áťáá°á á¨áá¨á á¨32 á¨á ááŞáŤ áááŤáľ ááŞáá˝á á¨ááŤáłá á¨ááááł áá áľááá á¨áᎠ7 á¨áá°ááą á¨áľá áĽá ἠáľáŤáá˝ áĽááłáá á áááááĄáĄ
âşá á°á¨ááŞá 50 á ááś á¨á ááľ áĽáá á¨á°á°á¨ááá¸á á¨ááááŞáŤááš á¨á áĽá¨áą áá°áĽá°á˘áŤ á áłáŤá˝ ááľáĽ áŤá ááá áŽá˝áŁá¨á°ááŤáŠ áááŤáľ á áľáŚáł á¨áá°á á¨á¨áą á ááśá˝ ááĽááł á¨ááááĄá áľ áá á¤áááĽá˝á ááá¨áá áááá áĽááááĄáĄ
âşá á ááá á¨ááááŞáŤ ááá áĽááá á á¨á ááľáá¸áá á˘áľáŽáľáŤ áá áĽá¨áą ááľá¨áł á¨áá áŤáľ á áľá°áጠá¨ááŤáłáŠ á¨áľáá áľáŤáá˝á ááááĄáĄ
âşááá°áá ááá á¨áá á ááŞáŤáááá áĽáá áľáá´á á¨áŠááľáŽá á áľá°áá ጠá¨ááłáá áľá¤á 3áá ááá á°áá á¨á ááŞáŤ á˘áŽááá áŽáá˝áá á¨á°áŁá áŠáľ ááááľáłáľ áľáá áľá áłáŞá á¨ááŤáłáŠ á¨áĽá° áĽá ἠáľáŤáá˝ ááŤááá á áś ááłá¸á áŤáĽáŤáŤááĄáĄ
âşá¨á ááŞáŤ á áłáŤá˝ á áááá ááłáá ááá áľáá´ á°áááĽáśá áĽá 29 áá 1953á.á á°ááá á¨á ááŞáŤ á ááľááľ áľáá áľ áá°áĽá°á˘áŤ á áłáŤá˝ ááá áááľ á áááą á¨á°á á¨á¨á° áĽáá°áá áá á¨á áá á¨á ááŞáŤ á áĽá¨áľ á áá áĽáľá¨áááᣠáľá¨áľ á¨á áĽá¨áą áá°áĽá°á˘áŤ áĽáá°áá áá áłáŞá áááá¨áááĄáĄ
Via Sheger FM
@etconp
đ10â¤2
Intercon Construction Chemicals
đ Authorized agent of MC (Conmix), Weber and SIMENTEK
â Concrete Admixtures
â Bonding Agents
â Waterproofings
â Concrete Repair, Grout
â Tile Adhesive & Tile Joint Fillers
â Wall Putty, Prime Coat, Rush Coat
â Quartz, Contextra
â Specialized paints (Thermal and Insulation Paints, Street and Playground Paints)
â Floor hardener, Epoxy
â Geotextiles, Geo-membranes and other construction chemicals and materials
Tel: 0961955555 or 0961955559
Address: Signal, around signal mall
đ Authorized agent of MC (Conmix), Weber and SIMENTEK
â Concrete Admixtures
â Bonding Agents
â Waterproofings
â Concrete Repair, Grout
â Tile Adhesive & Tile Joint Fillers
â Wall Putty, Prime Coat, Rush Coat
â Quartz, Contextra
â Specialized paints (Thermal and Insulation Paints, Street and Playground Paints)
â Floor hardener, Epoxy
â Geotextiles, Geo-membranes and other construction chemicals and materials
Tel: 0961955555 or 0961955559
Address: Signal, around signal mall
đ1
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0904040477
0911016833
đááá á á ááľ áŚáł á¨ááŤááá áľ áĽá áááá á ááĽ
đ°áá ááááá?
đáááľá ááŚááľ á ááááľ á áááľ á¨á°ááá á áá
âď¸áá፠ááľááŤá¨áĽ ááľá áłáľ áááá ááłá á á¨ááá áĽááłáŤáľáĄ áááá áá˝áá˝ á áľááĽá°áá
đáᎠ(áśáá˛á) áĽááľ ááľá ááľ áááá ááłá á áŤá°áĄ ááąá áá˝á á áá˝á áá
đáááááá á¨áá°áá áľáŤáá˝á á¨áá°áŠ áĽá áŁáááŤáá˝á á áá
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á áľáŤáťá˝áጠ1. áááŤáś
á.1 á á¨á á¤á
á.3 á°áááááááľ
0904040477
0911016833
đ5
đFIBER REINFORCED CONCRETE
đˇAs the name implies, we are talking about concrete that incorporates various types of fiber in an attempt to improve its flexural strength and most of all its ductility, its ability to deform without braking.
âşIt is well known that one of the biggest weaknesses of concrete is its brittleness. Although it can handle massive loads when compressed, it will break easily when submitted to bending forces, as its flexural strength is typically 6-10 times lower than its compressive strength.
âşIt is in other words a very strong but rigid material that cannot bend without breaking.
âśď¸That is why reinforced concrete was introduced in the first place, to help concrete overcome its fundamental weakness by working together with steel, to combine the strengths of both materials and make concrete more flexible, resulting in much slimmer construction elements that enabled erection of high-rise buildings.
đŤWhen designing fiber reinforced ready-mix concrete, the following things should be taken into consideration:-
1. The type of fiber used: there is a variety of available fibers (steel, glass, carbon, cellulose, polypropylene, structural synthetic) in different sizes and shapes, suitable for different applications.
Generally, steel and structural synthetic fibers are used for industrial floors in sizes that range from 2-6 cm length and 0.5-2 mm thickness.
An important parameter is the aspect ratio of the fiber, ranging from 30 to 120 for steel fibers, as it dictates the maximum quantity of fibers that can be incorporated in concrete.
The most important property of fibers is of course their flexural strength, which ranges from 650 MPa for structural synthetic to 1,100 MPa for steel fibers.
In case of a corrosive environment, the use of synthetic fibers instead of steel fibers is recommended, as steel is easily corroded.
2. The quantity of fibers used: it ranges from 20 to 60 kg/m3 of concrete for steel fibers, 1-3 kg/m3 for synthetic structural and 600-900 g/m3 for polypropylene fibers, although a study is always necessary to determine the quantity that gives the best results of strength with minimum impact on workability of concrete.
3. The maximum grain of concrete: for industrial floor applications, maximum grain will vary from 10 â 30 mm, depending on the thickness of the floor.
Usually, 10 mm is the maximum gravel size for floors up to 10 cm thickness, while 20-30 mm gravel is used for floors of higher thickness.
4. Compressive strength: typically, for industrial floors, a minimum C25/30 concrete is required to achieve the minimum surface wear and prolong service life.
5.Workability: fiber reinforced concrete has generally lower workability compared to normal concrete as a result of the entanglement of fibers and their bridging effect, therefore it is essential to aim for higher workability.
6.Pumpability: although fiber reinforced concrete is usually applied without pump, there are cases where the use of a normal or stationery pump is required.
Fiber reinforced concrete can be pumped, but the curve of the aggregates, the cement content, type and dosage of superplasticizer, workability and maximum dosage of fibers must be carefully adjusted.
Yonatan Tadesse PMPÂŽ
@etconp
đˇAs the name implies, we are talking about concrete that incorporates various types of fiber in an attempt to improve its flexural strength and most of all its ductility, its ability to deform without braking.
âşIt is well known that one of the biggest weaknesses of concrete is its brittleness. Although it can handle massive loads when compressed, it will break easily when submitted to bending forces, as its flexural strength is typically 6-10 times lower than its compressive strength.
âşIt is in other words a very strong but rigid material that cannot bend without breaking.
âśď¸That is why reinforced concrete was introduced in the first place, to help concrete overcome its fundamental weakness by working together with steel, to combine the strengths of both materials and make concrete more flexible, resulting in much slimmer construction elements that enabled erection of high-rise buildings.
đŤWhen designing fiber reinforced ready-mix concrete, the following things should be taken into consideration:-
1. The type of fiber used: there is a variety of available fibers (steel, glass, carbon, cellulose, polypropylene, structural synthetic) in different sizes and shapes, suitable for different applications.
Generally, steel and structural synthetic fibers are used for industrial floors in sizes that range from 2-6 cm length and 0.5-2 mm thickness.
An important parameter is the aspect ratio of the fiber, ranging from 30 to 120 for steel fibers, as it dictates the maximum quantity of fibers that can be incorporated in concrete.
The most important property of fibers is of course their flexural strength, which ranges from 650 MPa for structural synthetic to 1,100 MPa for steel fibers.
In case of a corrosive environment, the use of synthetic fibers instead of steel fibers is recommended, as steel is easily corroded.
2. The quantity of fibers used: it ranges from 20 to 60 kg/m3 of concrete for steel fibers, 1-3 kg/m3 for synthetic structural and 600-900 g/m3 for polypropylene fibers, although a study is always necessary to determine the quantity that gives the best results of strength with minimum impact on workability of concrete.
3. The maximum grain of concrete: for industrial floor applications, maximum grain will vary from 10 â 30 mm, depending on the thickness of the floor.
Usually, 10 mm is the maximum gravel size for floors up to 10 cm thickness, while 20-30 mm gravel is used for floors of higher thickness.
4. Compressive strength: typically, for industrial floors, a minimum C25/30 concrete is required to achieve the minimum surface wear and prolong service life.
5.Workability: fiber reinforced concrete has generally lower workability compared to normal concrete as a result of the entanglement of fibers and their bridging effect, therefore it is essential to aim for higher workability.
6.Pumpability: although fiber reinforced concrete is usually applied without pump, there are cases where the use of a normal or stationery pump is required.
Fiber reinforced concrete can be pumped, but the curve of the aggregates, the cement content, type and dosage of superplasticizer, workability and maximum dosage of fibers must be carefully adjusted.
Yonatan Tadesse PMPÂŽ
@etconp
đ6â¤1
đKey Performance indicators for construction management
đŤKey Performance Indicators (KPIs) that support better schedule tracking, cost management, resource utilization, and quality control.
đThe following pictures illustrate 10 basic KPIs with their basic explanations.
Via Yonatan Tadesse PMPÂŽ
@etconp
đŤKey Performance Indicators (KPIs) that support better schedule tracking, cost management, resource utilization, and quality control.
đThe following pictures illustrate 10 basic KPIs with their basic explanations.
Via Yonatan Tadesse PMPÂŽ
@etconp
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