Effect of Sulphate Attack on Self compacting Concrete
The result of the study indicated that the replacement of cement with 10% lime improved the durability of Self–compacting concrete The loss in mass, compressive strength and sorptivity of cubes were found to be negligible under Sulphate attack Effect of Sulphate Attack on Self compacting Concrete P Kathirvel, Faculty Research Scholar, Dept of Civil Engg, KLN P Kumar, 'Self Compacting Concrete: methods of testing and design', Journal of the Institution of Engineers (INDIA) vol 86, February 2006, pp 145150 PL Domone,' Selfcompacting concrete: An analysis of 11 years of case studies', Cement Concrete Effect of Sulphate Attack on Self compacting ConcreteSulphate attack is a process in which sulphates react with various phases of hydrated cement paste leading to deterioration of the concrete matrix through spalling, softening, and mass loss, which may lead to expansion and loose strength and elasticity It is recognized as a complex process due to the effect of numerous controlling factors [ 1, 2Effect of Magnesium Sulphate on SelfCompacting Concrete Selfcompacting concrete (SCC) comes to solve the problem of poor compaction SCC was developed in Japan by Professor Okamura, control mixture in the Na 2 SO 4 solution after 180 days is due to material detachment and cracking due to the expansive effect of sulphate attack The formation of sulphatebased products such as secondary ettringite leads to swelling, causing the Sulfate attack resistance of selfcompacting concrete with The effects of mineral admixture type on the behaviour of selfconsolidating concrete (SCC) in magnesium sulphate environments were investigated over the course of 4 years of exposure Three Effect of Magnesium Sulphate on SelfCompacting Concrete
Effect of Magnesium Sulphate on SelfCompacting Concrete
The length change is negligible and can be attributed to the normal distension of concrete On the other hand, concrete suffering from mass loss gives a good indicator about the durability of SCC Permeability of concrete is an important factor inEffect of Sulphate Attack on Self compacting Concrete ABSTRACT To achieve SCC properties, the concrete mix should contain lower volume of coarse aggregate(1) SCC requires higher powder content, lesser quantity of coarse aggregate, high range Superplasticizer and VMA to provide Stability and fluidity to the concrete mixes The flow Effect of Sulphate Attack on Self compacting Concrete The compounds responsible for sulphate attack on concrete are watersoluble sulphatecontaining salts, such as alkaliearth (calcium, magnesium) and alkali (sodium, potassium) sulphates that are capable of chemically reacting with components of concreteSulphate Attack on Concrete Process and Control of reinforced self compacting concrete, Sulfate attack, Internal sulfate attack 1 INTRODUCTION Self compacting concrete (SCC) is a concrete which has the ability to flow by its own weight and achieve good compaction without external vibration In addition, SCC has good resistance to segregation and bleeding because of its cohesive properties [1 INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND reinforced self compacting concrete, Sulfate attack, Internal sulfate attack 1 INTRODUCTION Self compacting concrete (SCC) is a concrete which has the ability to flow by its own weight and achieve good compaction without external vibration In addition, SCC has good resistance to segregation and bleeding because of its cohesive properties [1 INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND
Effect of External Sulfate Attack on Self Compacted Concrete
The effect of external sulfate attack was studiedEs (very sever exposure SO4>10000ppm) according to ACI 31811 The mix design method of SCC used is according to EFNARC 2002, and then must satisfy the criteria of filling ability, passing ability and segregation resistanceIn this paper, the assessment of magnesium sulphate (MS) attack on concrete containing various ratios of the supplementary cementitious materials () was investigated for concrete containing FA, RHA, and GGBS with cement replacement levels of 15%, 10%, and 5%, respectively, based on the selected samples from the concrete to the statement of the effect of magnesium on some of the Effect of Magnesium Sulphate on SelfCompacting Concrete The effects of mineral admixture type on the behaviour of selfconsolidating concrete (SCC) in magnesium sulphate environments were investigated over the course of 4 years of exposure Three Effect of Magnesium Sulphate on SelfCompacting Concrete In this study the durability of two highvolume fly ash selfcompacting concrete, HVFASCC, mixes exposed to the effects of two sulfate aggressive solutions was investigated The fly ash, class F, contents for these mixes were 50 and 60 percent by weight of Portland cementPerformance of Highvolume Fly Ash Selfcompacting The length change is negligible and can be attributed to the normal distension of concrete On the other hand, concrete suffering from mass loss gives a good indicator about the durability of SCC Permeability of concrete is an important factor inEffect of Magnesium Sulphate on SelfCompacting Concrete
Research Article Effect of Magnesium Sulphate on Self
Sulphate attack is a process in which sulphates react with various phases of hydrated cement paste leading to deterioration of the concrete matrix throughspalling,so ening,andmassloss,whichmayleadto expansionandloosestrengthandelasticityItisrecognizedas a complex process due to the e ect of numerous controlling factors [, ]Effect of External Sulfate Attack on Self Compacted Concrete Dr Zena K Abbas AlAnbori Engineering College, University of Baghdad/Baghdad :[ protected] Received on: 1/4/2012 Accepted on: 8/11/2012 ABSTRACT Selfcompacting concrete (SCC) is an innovative concrete that does not require vibration for placing and compactionpdf sulphate attack on self compacting concreteFrom the SelectedWorks of Hilmi Mahmud 2013 Effect of Magnesium Sulphate on SelfCompacting Concrete Containing Supplementary Cementitious MaterialsEffect of Magnesium Sulphate on SelfCompacting Concrete SelfCompacting Concrete after 5year Thaumasite Sulphate Attack Bertil SM Persson PhD Eng, Senior Lecturer Div Building Materials, Lund Institute of Technology John Ericssons v 1, PO Box 118, 221 00 Lund Email: ABSTRACT This article outlines a 5year study on Thaumasite Sulphate Attack, TSA, of SelfCompacting Concrete, SCC with lowalkali cement For SelfCompacting Concrete after 5year Thaumasite Sulphate SelfCompacting Concrete after 5year Thaumasite Sulphate Attack Bertil SM Persson PhD Eng, Senior Lecturer Div Building Materials, Lund Institute of Technology John Ericssons v 1, PO Box 118, 221 00 Lund Email: ABSTRACT This article outlines a 5year study on Thaumasite Sulphate Attack, TSA, of SelfCompacting Concrete, SCC with lowalkali cement For SelfCompacting Concrete after 5year Thaumasite Sulphate
Effect of Magnesium Sulphate on SelfCompacting Concrete
Information about the openaccess article 'Effect of Magnesium Sulphate on SelfCompacting Concrete Containing Supplementary Cementitious Materials' in DOAJ DOAJ is an online directory that indexes and provides access to quality open access, peerreviewed journalsThe internal sulfate attack is considered as a very important problem of concrete manufacture in Iraq and Middle East countries Sulfate drastically influences the properties of concrete This experimental study is aimed at investigating the effect of internal sulfates on fresh and some of the hardened properties of self compacting concrete (SCC) made from locally available materials Tests A Study on the Influence of Internal Sulfate on the In this paper, the assessment of magnesium sulphate (MS) attack on concrete containing various ratios of the supplementary cementitious materials () was investigated for concrete containing FA, RHA, and GGBS with cement replacement levels of 15%, 10%, and 5%, respectively, based on the selected samples from the concrete to the statement of the effect of magnesium on some of the "Effect of Magnesium Sulphate on SelfCompacting Concrete Effect of sulfate on the properties of self compacting concrete 2 Steel fiber reinforced concrete, Steel fiberreinforced self compacting concrete, Sulfate attack, Internal sulfate attack1 INTRODUCTIONSelf compacting concrete (SCC) is a concrete which has the ability to flow by its ownweight and achieve good compaction without external vibration In addition, SCC has Effect of sulfate on the properties of self compacting In this study the durability of two highvolume fly ash selfcompacting concrete, HVFASCC, mixes exposed to the effects of two sulfate aggressive solutions was investigated The fly ash, class F, contents for these mixes were 50 and 60 percent by weight of Portland cement The external sulfate attack was simulated by submerging the concrete specimens in 5 percent sodium and magnesium sulfate Performance of Highvolume Fly Ash Selfcompacting
pdf sulphate attack on self compacting concrete
Effect of External Sulfate Attack on Self Compacted Concrete Dr Zena K Abbas AlAnbori Engineering College, University of Baghdad/Baghdad :[ protected] Received on: 1/4/2012 Accepted on: 8/11/2012 ABSTRACT Selfcompacting concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction size effect on compressive strength of concrete made with Posted at: August 8, 2012 Effect of Sulphate Attack on Self compacting Concrete Loss in Mass and Compressive strength of concrete of stone crusher »More detailedeffect of sulphate on self compacting concrete MiningSelfcompacting sand concrete (SCSC) is a special type of selfcompacting concrete characterized by the use of aggregates with a maximum size less than 5 mm SCSC can incorporate large amounts of fine recycled concrete materials, making it aGREEN SELFCOMPACTING SAND CONCRETE EXPOSED TO SULFATE ATTACK Influence of Magnetic Water on Selfcompacting Concrete Using Sulphate Resisting Cement The reduction of sulphate salts lowers the possibility of sulphate attack on the concrete [7] In addition to metakaolin as an additive for provide extra strength to concrete [8] 2 Magnetic Water and Importance Magnetized water doesn’t mean water has acquired magnetic strength but that it has Influence of Magnetic Water on Selfcompacting Concrete
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