Effect of limestone aggregate type and water–cement ratio on concrete strength

Yaşar, Ergül; Erdoğan, Yasin; Kılıç, Alaettin

doi:10.1016/j.matlet.2003.06.004

Cited by 81 publications

(35 citation statements)

References 4 publications

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“…Early in 1977, Soroka and Setter [9] showed that LF in concrete could act as nuclei for precipitation of CSH and thus speed up the hydration of cement and early strength development. Subsequently, many studies on the use of LF as fine aggregate replacement have been conducted to evaluate the effects of such usage of LF on the workability [10], strength [11][12][13], dimensional stability [14,15] and durability [16,17] of concrete. Investigations have also been carried out to explore the use of LF as cement replacement and assess the effects of such usage of LF on the various properties of concrete [8,[18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Adding limestone fines as cementitious paste replacement to improve tensile strength, stiffness and durability of concrete

Kwan

2015

Cement and Concrete Composites

100

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Section: Introductionmentioning

confidence: 99%

Adding limestone fines as cementitious paste replacement to improve tensile strength, stiffness and durability of concrete

Kwan

2015

Cement and Concrete Composites

100

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“…Research on concrete has showed that the strength of the concrete mainly depends upon the strength of the aggregate materials and bond at the interfaces. 33 Thus, the good interfacial bonding, which is a necessary condition for improving the mechanical properties of composites, is required to achieve load transfer across the b-TCP aggregate-matrix interface. Figure 2 showed the compressive stress of CPC with b-TCP aggregates descended quickly after reaching the stress peak, indicating higher elastic module for the concretes due to the high elastic module of the b-TCP aggregates and intimate binding between the aggregates and matrix, which contributed to the improvement of the compressive strength.…”

Section: Discussionmentioning

confidence: 99%

Reinforcement of calcium phosphate cement by incorporating with high‐strength β‐tricalcium phosphate aggregates

Shi

2011

J Biomed Mater Res

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Calcium phosphate cement (CPC) sets to form hydroxyapatite after implantation and has been used in orthopedic and dental procedures. However, the brittleness and low strength of CPC prohibit its use in many stress-bearing locations, and so the improvement of the compressive strength is one of the focuses of research on CPC. In this study, a novel way was used to improve the mechanical performance of CPC by dispersion of high-strength degradable β-tricalcium phosphate (β-TCP) granules sized between 200 μm and 450 μm in the cement as aggregates. Intimate bonding was formed between the aggregates and CPC matrix after hydration. The results showed that, by addition of 20 wt % the as-prepared β-TCP aggregates, the compressive strength of the calcium phosphate cement was increased by about 70%, while the paste of the CPC concrete still maintained injectable, and the heat release decreased obviously (about 25%) in the hydration process. The high strength or high rigidity of the β-TCP aggregates and good interfacial bonding between the aggregates and the CPC matrix seemed to contribute to the significant improvement in the mechanical performance.

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“…It is necessary to determine strength, texture and mineralogical characteristics, physical and chemical properties of rock and aggregate for the improvement of the concrete strength. The strength of rocks is closely related to their mineralogical composition (Yasar et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Estimation of Type and Amount of Aggregates in Hardened Concrete

Gurskis

Skominas

Šadzevičius

et al. 2015

Proceedings of the 7th International Scientific Conference Rural Development 2015

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Sometimes happens that certificated concrete products, in which declarations of performance refer high strength and frost resistance indexes, start to deteriorate in first exploitation years. Due to aggressive environment this occurrence is frequent in concrete articles used for tiding surroundings: concrete paving blocks, slabs, curbs used for streets, parking places and pavements. Frequently, the main reason of deterioration is that concrete products are produced from the different concrete composition like samples, which have been used for certification. There are standard methods to estimate the amount of cement in concrete and to do a determination of air void characteristics in hardened concrete, but there are no methods how to estimate the amount and type of aggregates in concrete. For this reason, a new method was created. For the testing, the deteriorating paving zone, which had been built three years ago, was selected. The types of aggregates used in the production of concrete paving blocks have been estimated analyzing the cuts of the blocks. The test results show that the main aggregate, used for concrete paving block production, is gravel and it was used in higher amount as declared, while the granite breakstone and crushed gravel was used for production in lesser amount. In this case, the producer applying different amounts of aggregates reduced cost price as well as worsened the properties of concrete.

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Effect of limestone aggregate type and water–cement ratio on concrete strength

Cited by 81 publications

References 4 publications

Adding limestone fines as cementitious paste replacement to improve tensile strength, stiffness and durability of concrete

Adding limestone fines as cementitious paste replacement to improve tensile strength, stiffness and durability of concrete

Reinforcement of calcium phosphate cement by incorporating with high‐strength β‐tricalcium phosphate aggregates

Estimation of Type and Amount of Aggregates in Hardened Concrete

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