Using Crushed Clay Brick as Coarse Aggregate in Concrete

Khalaf, Fouad

doi:10.1061/(asce)0899-1561(2006)18:4(518)

Cited by 106 publications

(69 citation statements)

References 3 publications

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“…Required quantities for cement, water, coarse, and fine aggregate for all brick and stone aggregate are presented in Table 3. Since water absorption of brick aggregate is much higher, it is recommended to soak the brick aggregates in water prior to adding to the concrete mixture [2,3,6]. Otherwise, a large part of water from mix design calculation will be soaked by the aggregate and will not be available to react with cement changing the water cement ratio.…”

Section: Design and Mixing Methodsmentioning

confidence: 99%

“…The procedure for design of concrete mixes with normal aggregate can be used to design mixes using crushed brick aggregate [3]. In this work, mix design ratios for both stone and brick aggregate concrete with target compressive strength of 20.0, 30.0, and 40.0 MPa were evaluated from ACI method [18] with a water cement ratio ( / ) of 0.4, 0.5, and 0.6, respectively, considering slump value in the range of 25 to 50 mm.…”

Section: Design and Mixing Methodsmentioning

confidence: 99%

“…Though compressive strength of concrete in the normal range can be achieved satisfactorily, however, it is the durability properties like water permeability, creep, and shrinkage that has always been a concern for brick aggregate concrete. Water permeability is an important issue for concrete made from crushed clay bricks because brick aggregate is far more porous and hence permeable than granite and other natural stone aggregates [3]. There are a number of works that have been reported till today on properties of concrete made from brick aggregate [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Water permeability is an important issue for concrete made from crushed clay bricks because brick aggregate is far more porous and hence permeable than granite and other natural stone aggregates [3]. There are a number of works that have been reported till today on properties of concrete made from brick aggregate [1][2][3][4][5][6][7][8]. However, none of these have extensively investigated water permeability of brick aggregate concrete except Debeib who has shown that it is possible to manufacture concrete containing crushed bricks (coarse and fine) with water permeability characteristics similar to those of natural aggregate concrete provided that the percentage of brick aggregate is limited to 25% and 50% for coarse and fine aggregates, respectively [5].…”

Section: Introductionmentioning

confidence: 99%

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Water Permeability Characteristics of Normal Strength Concrete Made from Crushed Clay Bricks as Coarse Aggregate

Ahmad

Hossain

2017

Advances in Materials Science and Engineering

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Water permeability characteristic of concrete made from crushed clay bricks as coarse aggregate is investigated and compared with concrete made from natural stone aggregate. For this, six different brick and five different natural stone samples were selected. Crushing strength of brick samples and water absorption of aggregate produced from them were also measured. Concrete samples of three different compressive strengths were prepared as per ACI mix design method from each of these aggregate samples. Compressive strength of concrete that could be achieved with brick aggregate varied between 19 and 28 MPa, whereas, for stone aggregate, compressive strength varied between 24 and 46 MPa. These samples were then tested for water permeability using the AT 315 machine as per EN 12390-8: "Depth of Penetration of Water under Pressure." Experimental results and subsequent analysis indicate that water permeability of brick aggregate concrete is 225% to 550% higher than that of concrete made from natural stone aggregate of identical compressive strength. Water permeability was found to be directly related to compressive strength, water absorption, and porosity of hardened concrete. It was also observed that water permeability of concrete is influenced by water absorption of brick aggregate and crushing strength of brick.

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Section: Design and Mixing Methodsmentioning

confidence: 99%

Section: Design and Mixing Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Water Permeability Characteristics of Normal Strength Concrete Made from Crushed Clay Bricks as Coarse Aggregate

Ahmad

Hossain

2017

Advances in Materials Science and Engineering

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“…Considering the higher water absorption of recycled aggregates, many researchers took different measures to compensate the water that recycled aggregates absorb. Some recommended pre-saturating the aggregates [17,18], others recommended immersion in water for 30 minutes [19], the rest advised adding more water during the concrete production, in order to obtain the same effective w/c ratio. However, not only the lower strength but the higher water absorption, they both are the characteristics of recycled aggregates.…”

Section: Cubic Compressive Strengthmentioning

confidence: 99%

Compressive Strength Study on the Freeze-thaw Resistance of Recycled Aggregate Concrete Members

Niu¹,

Wang²,

Zhang³

et al. 2017

TOCIEJ

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Introduction:Freeze-thaw resistance of recycled aggregate concrete with partial or total replacement of recycled aggregate compared with that of natural aggregate concrete was investigated in this paper. Method:Ninety specimens were fabricated to study the influence of different recycled aggregate replacement ratios on the surface scaling, mass loss, and residual compressive strength after 100 freeze-thaw cycles. Results:The experiment results indicate that the type of recycled aggregate and its replacement ratio have significant effects on the freezethaw performance. The cubic compressive strength of recycled aggregate concrete is overall slightly lower than that of normal concrete. After 100 freeze-thaw cycles, the compressive strength decreases and the reduction extent increases with increasing replacement rate of recycled aggregate. The surface scaling of reinforced recycled concrete prisms tends to be more severe with the increase of freeze-thaw cycles. Conclusion:Furthermore, a notable rise in mass loss and the bearing capacity loss is also found as the substitution ratio increases. Under the same replacement rate, recycled fine aggregate causes more negative effects on the freeze-thaw resistance than recycled coarse aggregate.

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The effect of high temperature on the residual mechanical performance of concrete made with recycled ceramic coarse aggregates

2014

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SUMMARYThis paper presents an experimental study on the residual mechanical properties of concrete with recycled ceramic coarse aggregate (RCCA) after exposure to elevated temperatures. Four concrete mixes were produced: a control concrete and three concrete mixes with replacement ratios of 20, 50 and 100% of natural aggregate (NA) by RCCA. The specimens were subjected to temperatures of 200, 400 and 600°C, for a period of 60 min. After cooling down to room temperature, the following concrete properties were evaluated: (i) compressive strength; (ii) splitting tensile strength; (iii) modulus of elasticity; (iv) ultrasonic pulse velocity (UPV); and (v) water absorption by immersion. At ambient temperature, as expected, the replacement of NA by RCCA resulted in a performance reduction of concrete. After exposure to elevated temperature, in general, the results obtained indicated an improvement of the residual relative mechanical properties of the mixes with RCCA, particularly after exposure to 400 and 600°C. However, exposure to the highest temperature (600°C) tended to cause spalling in concrete mixes containing RCCA. Significant linear correlations were observed between the residual compressive strength of all concrete mixes and both the UPV and the water absorption by immersion.

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Using Crushed Clay Brick as Coarse Aggregate in Concrete

Cited by 106 publications

References 3 publications

Water Permeability Characteristics of Normal Strength Concrete Made from Crushed Clay Bricks as Coarse Aggregate

Water Permeability Characteristics of Normal Strength Concrete Made from Crushed Clay Bricks as Coarse Aggregate

Compressive Strength Study on the Freeze-thaw Resistance of Recycled Aggregate Concrete Members

The effect of high temperature on the residual mechanical performance of concrete made with recycled ceramic coarse aggregates

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