The Experts below are selected from a list of 36 Experts worldwide ranked by ideXlab platform
Qun Chen - One of the best experts on this subject based on the ideXlab platform.
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Research Article SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures
2016Co-Authors: Qun ChenAbstract:which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Compaction Characteristic of the surface layer asphalt mixture (13-type gradation mixture) was studied using Superpave gyratory compactor (SGC) simulative Compaction tests. Based on analysis of densification curve of gyratory Compaction, influence rules of the contents of mineral aggregates of all sizes and asphalt on Compaction Characteristic of asphalt mixtures were obtained. SGC Tests show that, for the mixture with a bigger content of asphalt, its density increases faster, that there is an optimal amount of fine aggregates for optimal Compaction and that an appropriate amount of mineral powder will improve workability of mixtures, but overmuch mineral powder will make mixtures dry and hard. Conclusions based on SGC tests can provide basis for how to adjust material composition for improving Compaction performance of asphalt mixtures, and for the designed asphalt mixture, its Compaction performance can be predicted through these conclusions, which also contributes to the choice of Compaction schemes. 1
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sgc tests for influence of material composition on Compaction Characteristic of asphalt mixtures
The Scientific World Journal, 2013Co-Authors: Qun ChenAbstract:Compaction Characteristic of the surface layer asphalt mixture (13-type gradation mixture) was studied using Superpave gyratory compactor (SGC) simulative Compaction tests. Based on analysis of densification curve of gyratory Compaction, influence rules of the contents of mineral aggregates of all sizes and asphalt on Compaction Characteristic of asphalt mixtures were obtained. SGC Tests show that, for the mixture with a bigger content of asphalt, its density increases faster, that there is an optimal amount of fine aggregates for optimal Compaction and that an appropriate amount of mineral powder will improve workability of mixtures, but overmuch mineral powder will make mixtures dry and hard. Conclusions based on SGC tests can provide basis for how to adjust material composition for improving Compaction performance of asphalt mixtures, and for the designed asphalt mixture, its Compaction performance can be predicted through these conclusions, which also contributes to the choice of Compaction schemes.
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analysis of influence rules of material composition on Compaction Characteristic of asphalt mixtures using sgc tests
Advanced Materials Research, 2010Co-Authors: Qun ChenAbstract:Through analysis of densification curve Characteristic of gyratory Compaction, influence rules of the content of mineral aggregates of all sizes and asphalt on Compaction Characteristic of mixtures were studied. Test studies show that the mixture having more of asphalt has a faster density-increasing speed, that there is an optimal amount of fine aggregates for optimal Compaction, and that an appropriate amount of mineral powder will improve workability of mixtures but overmuch mineral powder will make mixtures dry and hard. Conclusions from this research can provide basis for how to adjust material composition for improving Compaction performance of mixtures.
Bin Uzir Abdul Wahab. - One of the best experts on this subject based on the ideXlab platform.
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Effect of Compaction energy on engineering Characteristic of compacted soil
2010Co-Authors: Muhammad Ikram, Bin Uzir Abdul Wahab.Abstract:Soil Compaction is a significant stage in construction. When field Compaction is performed improperly, soil excessive settlement could occur and result in unnecessary maintenance costs or structure failure. The objective for this research is to study the effect of Compaction energy to Compaction Characteristic of granular soil. Granular soil is widely used as a replacement soil when dealing with soft soil such as peat and very soft clay. Furthermore, granular soil is commonly used in pavement of runaway which requires strong base to sustain heavy load from vehicles. Compactive effort is one factor that affects the quality of Compaction. Standard and Modified Proctor had been used to show the effect of compactive effort to the river sand and laterite soil samples. The study proved that the maximum dry density of soils increases when the compactive effort increases which also contributed to higher shear strength.
Muhammad Ikram - One of the best experts on this subject based on the ideXlab platform.
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Effect of Compaction energy on engineering Characteristic of compacted soil
2010Co-Authors: Muhammad Ikram, Bin Uzir Abdul Wahab.Abstract:Soil Compaction is a significant stage in construction. When field Compaction is performed improperly, soil excessive settlement could occur and result in unnecessary maintenance costs or structure failure. The objective for this research is to study the effect of Compaction energy to Compaction Characteristic of granular soil. Granular soil is widely used as a replacement soil when dealing with soft soil such as peat and very soft clay. Furthermore, granular soil is commonly used in pavement of runaway which requires strong base to sustain heavy load from vehicles. Compactive effort is one factor that affects the quality of Compaction. Standard and Modified Proctor had been used to show the effect of compactive effort to the river sand and laterite soil samples. The study proved that the maximum dry density of soils increases when the compactive effort increases which also contributed to higher shear strength.
X U Guanghui - One of the best experts on this subject based on the ideXlab platform.
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experimental investigation on vibrating Compaction Characteristic of crashed stone
Journal of Southwest Jiaotong University, 2007Co-Authors: X U GuanghuiAbstract:A dynamic analysis of vibrating compacting of crashed stone was carried out,and structural resistance of crashed stone in the process of vibrating compacting was measured by utilizing a vibrating Compaction test system in order to describe the Compaction status of crashed stone accurately.The research results show that change of the Compaction status of crashed stone can be described through variation of its structural resistance,while the latter can be expressed by the change in the acceleration response of compacting instrument.The vibrating Compaction of crashed stone is a process,and in this process,elastic deformation and plastic deformation occur alternately.Furthermore,the strength,rigidity and stability of crashed stone,as a structure,increase in the form of steps in the whole process.The research result is helpful for the field judgment of Compaction status of a crashed stone roadbed.
Dongwook Kim - One of the best experts on this subject based on the ideXlab platform.
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temperature effect on the Compaction Characteristic of cohesionless soil
Journal of the Korean Geotechnical Society, 2016Co-Authors: Kicheol Lee, Hobi Kim, Dongwook KimAbstract:Abstract Among several factors controlling soil Compaction, temperature is the factor that varies with region and season. Although earthwork is performed in many projects in the cold regions of the earth, studies on quantifying soil Compaction associated with temperature are limited. This experimental study investigates the temperature effect on the soil Compaction of cohesionless soil. Jumunjin sand was selected for the tests to represent cohesionless clean sand, which is widely used as an engineering fill at petrochemical projects such as northern Alberta of Canada and Russia. The laboratory test program consists of performing a series of standard proctor tests varying temperature of soil samples ranging from -10°C to 17°C. Test results indicate that soil specimen volume expansion occurred from bulking and its range was 0% to 6% with zero above temperature. For increasing temperature from 0°C to 17°C, water content corresponding to maximum volume (minimum dry unit weight) was decreased and water content corresponding to minimum volume (maximum dry unit weight observed after reaching minimum dry unit weight) was slightly increased with increasing temperature. In zero below temperature, dry unit weight gradually decreased with increasing water content. In this case, no bulking effect was found and soil specimen volume increased due to the higher unit volume of ice.