Use of mineral admixtures to improve the resistance of limestone cement concrete against thaumasite form of sulfate attack

Skaropoulou, A.; Sotiriadis, Konstantinos; Kakali, G.; Tsivilis, S.

doi:10.1016/j.cemconcomp.2013.01.007

Cited by 89 publications

(23 citation statements)

References 23 publications

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“…However, it cannot be applied to concrete structures like apartment houses due to the difficulty in mass production for in-site concrete, and low durability [26].…”

Section: Research Trends In the Estimation Of Apartment Construction mentioning

confidence: 99%

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Kim

2016

Sustainability

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Studies which reduce cement usage, develop an alternative by partial replacement of cement with blast-furnace slag, fly ash, or such industrial byproducts, and evaluate the environmental load and economic value of concrete mixed with such are in high demand. In this study, A-BFS (Activator Blast Furnace Slag), which is mixed with an activator in order to induce early-age strength manifestation of BFS mixed concrete was used to execute a physical property evaluation of concrete. This study first conducted physical property tests for compression strength of concrete that partially replaced OPC (ordinary Portland cement) with A-BFS and executed a comparison/analysis with 100% OPC. It was thought that if concrete early strength is manifested through this process when applied to RC (Reinforced Concrete) building, at most a three to four day construction cycle would be possible, according to which the economic value of the construction period reduction was evaluated. For this evaluation, general apartment houses (Case 1) were taken as the evaluation subject, and for comparison, Cases 2, 3, and 4 were set up by the mix ratio of A-BFS, and the economic value evaluation range was established. As a result, it was found that Case 2 had no change from Case 1, while Case 3 saved about 106,654,762 KRW (Korea Won) and Case 4 saved about 159,982,143 KRW.

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“…However, it cannot be applied to concrete structures like apartment houses due to the difficulty in mass production for in-site concrete, and low durability [26].…”

Section: Research Trends In the Estimation Of Apartment Construction mentioning

confidence: 99%

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Kim

2016

Sustainability

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“…The use of supplementary cementitious (pulverised fly ash (PFA), ground granulated blast furnace slag (GGBS) and silica fume) materials have often been used to suppress sulfate attack, helping to minimise both ettringite and gypsum formation, plus helping to resist thaumasite attack (Barcelo et al, 2014;Higgins and Crammond, 2003;Skaropoulou et al, 2013 (Bye, 2011). (b) Pozzolans further reduce the portlandite content as they hydrate.…”

Section: Impact Of Supplementary Cementitious Materials and Additivesmentioning

confidence: 99%

Current knowledge of external sulfate attack

Whittaker¹,

Black²

2015

Advances in Cement Research

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This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix. The paper considers the explanations put forward to explain sulfate attack, both from a chemical and microstructural perspective.Similarly, this paper reviews work on the physical damage caused by the precipitation of sulfate salts in porous materials. With the increased use of binary and ternary blends, this paper also considers the impact of binder composition on sulfate resistance, and similarly reviews how the nature of the sulfate species can affect the nature and extent of any deterioration. This then leads on to the important consideration of differences between field-and lab-based studies, reviewing the effect of various experimental parameters on sulfate resistance. This latter topic is of great importance to anyone who wishes to carry out such experiments.

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“…After a calcination reaction, it produces four clinker minerals: alite, belite, aluminate and ferrite. Each clinker mineral reveals different cement characteristics depending on its content so that it would be available as a clinker activator through the appropriate chemical mixture of materials [11].…”

Section: Limestonementioning

confidence: 99%

The Environmental Impact and Cost Analysis of Concrete Mixing Blast Furnace Slag Containing Titanium Gypsum and Sludge in South Korea

et al. 2016

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This study assessed the environmental effects and cost of the Industrial Waste addictive Blast Furnace Slag (W-BFS) using Life Cycle Assessment (LCA) and compared it to general BFS. The environmental impacts of W-BFS were as follows: 1.12ˆ10´1 kg-CO 2 eq/kg, 3.18ˆ10´5 kg-Ethylene eq/kg, 4.79ˆ10´4 kg-SO 2 eq/kg, 7.15ˆ10´4 kg-PO 4 3´e q/kg, 7.15ˆ10´4 kg-CFC 11 eq/kg and 3.94ˆ10´3 kg-Antimony eq/kg. Among the environmental impact category, GWP and AP were 9.28ˆ10´2 kg-CO 2 eq/kg and 3.33ˆ10´4 kg-SO 2 eq/kg at a raw material stage, accounting for 80% and 70% of total environmental impact respectively. In EP, POCP and ADP, in addition, raw material

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Use of mineral admixtures to improve the resistance of limestone cement concrete against thaumasite form of sulfate attack

Cited by 89 publications

References 23 publications

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Current knowledge of external sulfate attack

The Environmental Impact and Cost Analysis of Concrete Mixing Blast Furnace Slag Containing Titanium Gypsum and Sludge in South Korea

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