Design of maximum density aggregate grading

Abdel-Jawad, Yahia; Abdullah, Waddah S.

doi:10.1016/s0950-0618(02)00032-6

Cited by 41 publications

(11 citation statements)

References 1 publication

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“…where sub-index i represents a particular sieve, D i sieve size (mm), D max the maximum aggregate size (mm), p i percent finer than diameter D i , and n the shape factor [42]. The density curve with n = 0.45 was applied in order to achieve the maximum particle packing of crushed aggregate [43].…”

Section: Characterization Of Granular Aggregatementioning

confidence: 99%

Thermomechanical properties of particle-reinforced geopolymer composite with various aggregate gradation of fine ceramic filler

Kovařík

Rieger

Kadlec

et al. 2017

Construction and Building Materials

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Section: Characterization Of Granular Aggregatementioning

confidence: 99%

Thermomechanical properties of particle-reinforced geopolymer composite with various aggregate gradation of fine ceramic filler

Kovařík

Rieger

Kadlec

et al. 2017

Construction and Building Materials

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“…Parameter n should specify the properties of ideal aggregate grading to maximize packing density. Studies have found that using a higher aggregate packing density increases concrete properties like workability, compressive strength and durability [30]. Figure 6 …”

Section: Ideal Grading Curve Sub-fuzzy System (Igcfs)mentioning

confidence: 99%

“…To achieve this goal, aggregates must be graded to decrease the percentage of voids between the aggregates and maximize the volume of solid grains (packing density) [30,[32][33][34][35]. The aggregate packing density according to the standard test method for bulk density (unit weight) and voids in aggregates [36] and the cement content used in the mix proportioned using the fuzzy system were compared with those from the ACI method [1].…”

Section: Comparison Of Proposed System Based On Packing Densitymentioning

confidence: 99%

A Fuzzy System Methodology for Concrete Mixture Design Considering Maximum Packing Density and Minimum Cement Content

2015

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Concrete mix proportioning could be referred to the process of determining the quantities of concrete ingredients using local materials to achieve specific characteristics of the concrete. Among the most important parameters affecting the performance of concrete are the packing density and the grading curve of the aggregates. Better packing of aggregates improves the strength, durability, elastic modulus and creep of the concrete. Accordingly, by increasing packing density and decreasing cement content, environment pollution will decrease. The present study proposes a fuzzybased technique for mix proportioning of normal concrete that increases packing density and decreases cement content. The proposed system utilizes four sub-fuzzy systems to quantify the target compressive strength, water-to-cement ratio, ideal grading curve and free water of the concrete. The results from the proposed fuzzy systems were compared with those obtained from the concrete mix proportioned by field experts. The comparison showed strong agreement between the results for the fuzzy and expert-proportioned mixtures. The proposed system used less cement and had a higher packing density than was found using other mixture proportioning methods.

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“…Concrete properties such as mechanical and durability properties are highly affected by aggregate properties such as aggregate gradation (Ashraf & Noor, 2011;Ergul, Yasin, & Alaettin, 2004;Ioannis & Konstantinos, 2013;Mucteba, Kemalettin, & Metin, 2010;Rafat, Paratibha, & Yogesh, 2012;Ronnen & Hashem, 2002;Sari & Pasamehmetoglu, 2005;Abdel-Jawad & Abdullah, 2002). Good aggregate gradation corresponds to high packing density and properties of concrete.…”

Section: Introductionmentioning

confidence: 99%

Effect of Aggregate Gradation with Fuller Distribution on Properties of Sulfoaluminate Cement Concrete

Gong¹,

Zhang²,

Wang³

et al. 2014

Proceedings of the 4th International Conference on the Durability of Concrete Structures

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Aggregate, the main ingredient of concrete, has a great effect on mechanical property and durability of concrete. Sulfoaluminate cement has lots of special properties such as high early-age compressive strength, fast hydration and setting rate, and hydration with slight swelling. But effect of aggregate gradation with Fuller distribution on properties of sulfoaluminate cement concrete was seldom studied. Hence, in this paper, experimental investigations on mechanical property and durability of sulfoaluminate cement concrete with aggregate gradations according to Fuller distribution were presented. Fuller distribution of aggregates was beneficial to the close packing of aggregates, and the packing density was changed by adjusting the aggregate gradations. Compressive strength, water impermeability, and resistance capability to sulfate attack of SACC have the same trend of concrete with fine aggregates of Fuller distribution gradation < concrete with fine aggregates of Fuller distribution gradation < concrete with fine aggregates of Fuller distribution gradation. The relationship between packing density of aggregate and water penetration depth obeyed the second-order polynomial y = 0.002x 2 -6.8638x + 5862.3 and had a notable correlation R 2 = 0.9799. The sulfoaluminate cement concrete with total aggregate gradation with Fuller distribution for h = 0.50 had the best resistance capability to sulfate attack. It was a second-order polynomial relationship between packing density of aggregates and water penetration depth of y = 0.002x 2 -6.8638x + 5862.3 with R 2 = 0.9799, which indicated notable correlation. The fitting formula between packing density of aggregates and sulfate resistance coefficient of SACC was y = 0.0.0005x + 0.3704 with R 2 = 0.9585.

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Design of maximum density aggregate grading

Cited by 41 publications

References 1 publication

Thermomechanical properties of particle-reinforced geopolymer composite with various aggregate gradation of fine ceramic filler

Thermomechanical properties of particle-reinforced geopolymer composite with various aggregate gradation of fine ceramic filler

A Fuzzy System Methodology for Concrete Mixture Design Considering Maximum Packing Density and Minimum Cement Content

Effect of Aggregate Gradation with Fuller Distribution on Properties of Sulfoaluminate Cement Concrete

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