effect of sulphate attack on self compacting concrete

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Effect of Magnesium Sulphate on Self

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 in...

Performance of High

Performance of High-volume Fly Ash Self-compacting Concrete Exposed to External Sulfate Attack Leeds, UK The high-volume fly ash concrete, HVFAC, could be defined as any concrete mix having fly ash content larger than 50 percent of the total cementitious materials content...

Microstructural Changes in Self

concrete elements such as foundations, floors, basement walls and sewage pipe systems The effect of sulphuric acid attack is more detrimental than that of external sulphate attack by sulphate salts due to two important aspects: the reaction with sulphate ions and the dissolution effect ,...

Pozzolan Concrete Durability on Sulphate Attack

Performance of self-compacting concrete incorporating recycled concrete fines and aggregate exposed to sulphate attack Durability of concrete containing a natural pozzolan as defined by a performance-based approach...

Effect of Freezing

Jul 29, 2010· Bassuoni MT, Sonebi M (2010) Effect of Freezing-Thawing Cycles on the Resistance of Self-Consolidating Concrete to Sulfate Attack In: Khayat K, Feys D (eds) Design, Production and Placement of Self-Consolidating Concrete...

Effect of external sulfate attack on the self

The aim of the presented research in this thesis focuses on the effect of external sulfate attack on the durability of self-compacting concrete For that, four types of concretes based on Aigerian ....

Effect of Sulphate and Acid on Self

Self-compacting concrete requires high powder content which implies increased cost and increased CO 2 emission into the environment; hence, the need for the inculcation of a supplementary cementitious material (SCM) to the concrete mix such as corn cob ash (CCA) which is obtained by drying, grinding and burning the corn cobs The chemical composition of the corn cob ash showed that it was ....

Influence of Magnesium Sulfate on Self

Keywords: sulfate attack, treated alum sludge, self-compacting concrete, cement replacement 1 Introduction The Sulfate in solid form condition does not attack the concrete, but in solution form, sulfates react with the cement paste compounds leading to increase in size and then the deterioration of concrete Due to (Neville, 2005)...

Durability of Lightweight Self

8 The durability of the lightweight self-compacted concrete "LW-SCC" is sufficient enough compared to that of normal weight self-compacting concrete "NW-SCC" with a redaction for LW-SCC under the attack of chlorides and sulphate by about 333% and 492% respectively...

Effect of Magnesium Sulphate on Self

Effect of Magnesium Sulphate on Self-Compacting Concrete Containing Supplementary Cementitious Materials Article (PDF Available) in Advances in Materials Science and Engineering 8(6) February ....

Sulfate Attack

Sulfate attack is the reaction between sulfate ions in the pore solution of concrete and constituents in the concrete that result in formation of new reaction products with a relatively large molar volume If sufficient new phases are formed, stresses can be induced in the concrete to such an extent that the concrete can undergo cracking...

SULPHATE ATTACK

Jun 03, 2018· Intro to Sulfate Attack! , 5:57 Self Compacting Concrete Testing of ALL Fresh Properties - Duration: 13:54 M Kay Recommended for you 13:54 How To Make A Concrete Countertop, It's Easier Than ....

Studies on effect of mineral admixtures on ,

Ganesan N etal studied the effect of steel fibres on the durability parameters of self-compacting concrete (SCC) such as permeability, water absorption , abrasion resistance , resistance to ....

Durability of metakaolin concrete to sulfate attack

These concrete mixtures were used to investigate the effect of w/b ratio on the durability of MK concrete to sulfate attack Concrete mixtures I, J, K, and L were air entrained with average air contents of about 5%, the w/b ratio was 05, and the MK replacement levels were 0%, 5%, 10%, and 15% by weight of cement, respectively...

Sulfate attack in concrete and mortar

Sulfate attack in cement, mortar and concrete Cement is composed of mainly two minerals tri-calcium silicates (C3S) and di-calcium silicates (C2S) Upon hydration, the main reaction products are a calcium silicate gels (C-S-H) and calcium hydroxide Ca(OH)2 or CH in cement chemistry...

Influence of Magnetic Water on Self

Influence of Magnetic Water on Self-compacting 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] , The effect of a static magnetic field on liquid water, and suggested ....

Durability of self

Jan 22, 2008· Durability of self-consolidating concrete to combined effects of sulphate attack and frost action Durability of self-consolidating concrete to combined effects of sulphate attack and frost action Nehdi, M; Bassuoni, M 2008-01-22 00:00:00 The worldwide shift towards performance-based standards for concrete demands the advent of performance tests that combine more than one ,...

Sulfate attack in concrete

65 Identify Concrete Deterioration due to Sulphate Attack Throughout this study, it was possible to evaluate the effect of sulphate attack on concrete mixes by testing the changes in strength, height, and mass, in addition to observing the optical appearance of the test samples, as shown in Figure 7 It is acknowledged that the best ....

Effect of Magnesium Sulphate on Self

In this paper, the assessment of magnesium sulphate (MS) attack on concrete containing various ratios of the supplementary cementitious materials (SCM) 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 ....

Concrete degradation

Concrete degradation may have various causConcrete can be damaged by fire, aggregate expansion, sea water effects, bacterial corrosion, calcium leaching, physical damage and chemical damage (from carbonatation, chlorides, sulfates and non-distilled water)This process adversely affects concrete exposed to these damaging stimuli...

Sulfate damage to concrete floors

This report gives guidance on sulfate-attack damage to houses from the past use of sulfate-bearing hardcore and infill material , Sulfate damage to concrete floors , Business and self-employed...

Effect of Combined Sulfate

ABSTRACT: Chloride and sulfate ions damage the reinforced concrete in marine environment due tothe corrosion and formation of expansive products, respectively Interaction of chloride-sulfate ions onconcrete deterioration is very complicated Little research has been conducted in this respectIn this study, the effect of chloride ions on sulfate attack and effect of sulfate ions on chloride ....

Performance of High

Portland cements In this study the durability of two high-compacting concrete, -volume fly ash self 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 ....

Effect of Addition of Combination of Admixtures ,

Nov 01, 2012· Read "Effect of Addition of Combination of Admixtures on the Properties of Self Compacting Concrete Subjected to Sulphate Attack, Journal on Civil Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of ,...

Thaumasite sulphate attack on self

The paper deals with durability of Self-Compacting Concrete with limestone filler during Thaumasite Sulphate Attack For this purpose six concrete with varying amounts of limestone filler, particle size of limestone filler, pressure height during casting and mixing order were studied One normal concrete (without limestone filler) with vibrator compaction was studied in parallel...

Effect of Magnesium Sulphate on Self

Effect of Magnesium Sulphate on Self-Compacting Concrete Containing Supplementary Cementitious Materials AiadHassan,1 HilmiBinMahmud,1 MohdZaminJumaat,1 BelalALsubari,1 andAzizAbdulla2 1DepartmentofCivilEngineering,UniversityofMalayaMalaysia,KualaLumpur,Malaysia 2DepartmentsofCivilEngineering,TikritUniversity,Tikrit,Iraq...

Study on Durability Characteristics of Self

KEYWORDS: Self-compacting concrete, Fly ash, Saturated water absorption, Acid resistance, Sulphate attack, Mineral admixture INTRODUCTION Self-compacting concrete (SCC), requiring no consolidation work at site or concrete plants, has been developed in Japan to improve the durability and uniformity of concrete in 1988 (Okamura and Ouchi, 1999)...

The Effect of Water

Sulfate resistance of concrete is one of the examples of chemical durability of concrete Self-Compacting Concrete (SCC) known as concrete which can flow within its self-weight and without forming honeycombing, segregation and bleeding, even with no compaction...

Durability Based Study of Self

Durability Based Study of Self-compacting Concrete Having Surplus and Waste Brick Kiln Dust as Partial Replacement of Fine Aggregate In this research work experimental work has been done to investigate the effect of using brick kiln dust in self-compacting concrete as a partial replacement of fine aggregate and its durability was also checked...

INFLUENCE OF SELF

Sulfuric acid attack on concrete has been reported for over a century Many scientific papers deal with the issue of concrete damage due to sulfate and sulfuric attack The introduction of self-compacting concrete introduces new questions related to the behaviour of powder-rich mixtures in a sulfate ,...

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