Reduction in alkali–silica expansion due to steel microfibers

Turanlı, Lütfullah; Shomglin, Kome; Ostertag, CP; Monteiro, P. J. M.

doi:10.1016/s0008-8846(01)00479-3

Cited by 33 publications

(9 citation statements)

References 3 publications

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“…Moreover, the reduction in the alkali silica reaction expansion may be due to the use of micro-fibers (PVA fiber) in the production of ECC. The influence of micro-fiber addition on the alkali silica expansion has also been examined by other researchers [19][20][21], and according to their test results, it is plausible that micro-fibers aid in suppressing the expansion in the matrix induced by alkali silica reaction. Fig.…”

Section: Accelerated Mortar Bar Testmentioning

confidence: 99%

Durability of mechanically loaded engineered cementitious composites under highly alkaline environments

Şahmaran

2008

Cement and Concrete Composites

177

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Section: Accelerated Mortar Bar Testmentioning

confidence: 99%

Durability of mechanically loaded engineered cementitious composites under highly alkaline environments

Şahmaran

2008

Cement and Concrete Composites

177

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“…Most reports agree that the ASR expansion in FRC is lower than that of normal concrete without fibers (see Figure 4 ). Expansion was found to be reduced with the increased fiber content [ 93 , 96 ]. In FRC mortar mixes, micro-steel fibers were used at 0, 1, 3, 5 and 7% vol.…”

Section: Deterioration Processes Affecting Fiber Reinforced Concrementioning

confidence: 99%

“…In FRC mortar mixes, micro-steel fibers were used at 0, 1, 3, 5 and 7% vol. of cement, respectively, and the expansion was measured every 24 h for 30 days as per ASTM C-1260 [ 96 ]. After 30 days of testing, expansion (%) was found to be 0.80 to 0.70, 0.55, 0.30, and 0.19 for fiber content of 0%, 1%, 3%, 5%, and 7%, respectively (see Figure 4 ).…”

Section: Deterioration Processes Affecting Fiber Reinforced Concrementioning

confidence: 99%

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Effect of Fibers on Durability of Concrete: A Practical Review

2020

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This article reviews the literature related to the performance of fiber reinforced concrete (FRC) in the context of the durability of concrete infrastructures. The durability of a concrete infrastructure is defined by its ability to sustain reliable levels of serviceability and structural integrity in environmental exposure which may be harsh without any major need for repair intervention throughout the design service life. Conventional concrete has relatively low tensile capacity and ductility, and thus is susceptible to cracking. Cracks are considered to be pathways for gases, liquids, and deleterious solutes entering the concrete, which lead to the early onset of deterioration processes in the concrete or reinforcing steel. Chloride aqueous solution may reach the embedded steel quickly after cracked regions are exposed to de-icing salt or spray in coastal regions, which de-passivates the protective film, whereby corrosion initiation occurs decades earlier than when chlorides would have to gradually ingress uncracked concrete covering the steel in the absence of cracks. Appropriate inclusion of steel or non-metallic fibers has been proven to increase both the tensile capacity and ductility of FRC. Many researchers have investigated durability enhancement by use of FRC. This paper reviews substantial evidence that the improved tensile characteristics of FRC used to construct infrastructure, improve its durability through mainly the fiber bridging and control of cracks. The evidence is based on both reported laboratory investigations under controlled conditions and the monitored performance of actual infrastructure constructed of FRC. The paper aims to help design engineers towards considering the use of FRC in real-life concrete infrastructures appropriately and more confidently.

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“…Turanli et al [3] have established that the introduction of steel microfibers to mortar reduced the overall mortar bar expansion due to ASR. Steel microfibers (l/d 30) were used at fiber volume fractions of 1%, 3%, 5%, and 7%.…”

Section: Introductionmentioning

confidence: 99%