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Jun-jie Wang - One of the best experts on this subject based on the ideXlab platform.
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Effects of particle size on compaction behavior and particle crushing of crushed sandstone–mudstone particle mixture
Environmental Earth Sciences, 2014Co-Authors: Jun-jie Wang, Hui-ping Zhang, Yu-zhu Cheng, Di-ping DengAbstract:The compaction behavior and particle crushing during compaction of the crushed sandstone–mudstone particle mixture, which is used as a filling material, are investigated in the present study. The value of the Maximum Dry Density, deduced from a standard compaction test, ranges from 2.08 to 2.13 g/cm3, and that of the optimum moisture content from 8.18 to 10.62 %. The value of the Maximum Dry Density increases, then decreases with the increment of the median particle diameter and gravel content. But the value of the optimum moisture content decreases, then increases with the increment of the median particle diameter or gravel content. The value of the average relative breakage ranges from 0.09 to 0.30, and it increases with the increment of the median particle diameter and gravel content. Compared to the mixture of sandstone particles only with the same grain size distribution curves, the mudstone particles mixed into sandstone particles may slightly increase the Maximum Dry Density and decrease the amount of particle crushing.
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Effects of Particle Size Distribution on Compaction Behavior and Particle Crushing of a Mudstone Particle Mixture
Geotechnical and Geological Engineering, 2014Co-Authors: Jun-jie Wang, Yang Yang, Hui-ping ZhangAbstract:Based on a standard compaction test and a standard sieve analysis test on five tested materials, the effects of the particle size distribution on the compaction behavior and particle crushing of a crushed mudstone particle mixture were investigated. Testing results indicate that the value of the Maximum Dry Density ranges from 2.09 to 2.17 g/cm3, the optimum moisture content from 7.40 to 11.66 %, and the average relative breakage from 0.065 to 0.285, respectively. Based on the tested data, the variations of the Maximum Dry Density, optimum moisture content and average relative breakage, with the median particle diameter and gravel content of the tested mixtures, were analyzed, respectively.
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Effects of mudstone particle content on compaction behavior and particle crushing of a crushed sandstone–mudstone particle mixture
Engineering Geology, 2013Co-Authors: Jun-jie Wang, Hui-ping Zhang, Di-ping DengAbstract:Abstract The present study focuses on the compaction behavior and particle crushing, during the compaction, of a crushed sandstone–mudstone particle mixture. Compaction tests and sieve analysis tests, in laboratory, were performed. The effects of the mudstone particle content, by weight, on the Maximum Dry Density, the optimum moisture content and the average relative breakage were analyzed. Testing results indicate that the values of the Maximum Dry Density and the optimum moisture content of the mixture are increasing then decreases with the increase of the mudstone particle content. While the mudstone particle content is about 60%, the Maximum Dry Density is near its Maximum. The average relative breakage, during the compaction, is decreasing quickly then increases slowly with the increase of the mudstone particle content. While the mudstone particle content is about 40%, the average relative breakage is near its minimum. Compared to those of a crushed sandstone particle mixture, the Maximum Dry Density of the crushed sandstone–mudstone particle mixture is greater, and the average relative breakage, during the compaction, is smaller.
Hui-ping Zhang - One of the best experts on this subject based on the ideXlab platform.
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Effects of particle size on compaction behavior and particle crushing of crushed sandstone–mudstone particle mixture
Environmental Earth Sciences, 2014Co-Authors: Jun-jie Wang, Hui-ping Zhang, Yu-zhu Cheng, Di-ping DengAbstract:The compaction behavior and particle crushing during compaction of the crushed sandstone–mudstone particle mixture, which is used as a filling material, are investigated in the present study. The value of the Maximum Dry Density, deduced from a standard compaction test, ranges from 2.08 to 2.13 g/cm3, and that of the optimum moisture content from 8.18 to 10.62 %. The value of the Maximum Dry Density increases, then decreases with the increment of the median particle diameter and gravel content. But the value of the optimum moisture content decreases, then increases with the increment of the median particle diameter or gravel content. The value of the average relative breakage ranges from 0.09 to 0.30, and it increases with the increment of the median particle diameter and gravel content. Compared to the mixture of sandstone particles only with the same grain size distribution curves, the mudstone particles mixed into sandstone particles may slightly increase the Maximum Dry Density and decrease the amount of particle crushing.
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Effects of Particle Size Distribution on Compaction Behavior and Particle Crushing of a Mudstone Particle Mixture
Geotechnical and Geological Engineering, 2014Co-Authors: Jun-jie Wang, Yang Yang, Hui-ping ZhangAbstract:Based on a standard compaction test and a standard sieve analysis test on five tested materials, the effects of the particle size distribution on the compaction behavior and particle crushing of a crushed mudstone particle mixture were investigated. Testing results indicate that the value of the Maximum Dry Density ranges from 2.09 to 2.17 g/cm3, the optimum moisture content from 7.40 to 11.66 %, and the average relative breakage from 0.065 to 0.285, respectively. Based on the tested data, the variations of the Maximum Dry Density, optimum moisture content and average relative breakage, with the median particle diameter and gravel content of the tested mixtures, were analyzed, respectively.
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Effects of mudstone particle content on compaction behavior and particle crushing of a crushed sandstone–mudstone particle mixture
Engineering Geology, 2013Co-Authors: Jun-jie Wang, Hui-ping Zhang, Di-ping DengAbstract:Abstract The present study focuses on the compaction behavior and particle crushing, during the compaction, of a crushed sandstone–mudstone particle mixture. Compaction tests and sieve analysis tests, in laboratory, were performed. The effects of the mudstone particle content, by weight, on the Maximum Dry Density, the optimum moisture content and the average relative breakage were analyzed. Testing results indicate that the values of the Maximum Dry Density and the optimum moisture content of the mixture are increasing then decreases with the increase of the mudstone particle content. While the mudstone particle content is about 60%, the Maximum Dry Density is near its Maximum. The average relative breakage, during the compaction, is decreasing quickly then increases slowly with the increase of the mudstone particle content. While the mudstone particle content is about 40%, the average relative breakage is near its minimum. Compared to those of a crushed sandstone particle mixture, the Maximum Dry Density of the crushed sandstone–mudstone particle mixture is greater, and the average relative breakage, during the compaction, is smaller.
Di-ping Deng - One of the best experts on this subject based on the ideXlab platform.
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Effects of particle size on compaction behavior and particle crushing of crushed sandstone–mudstone particle mixture
Environmental Earth Sciences, 2014Co-Authors: Jun-jie Wang, Hui-ping Zhang, Yu-zhu Cheng, Di-ping DengAbstract:The compaction behavior and particle crushing during compaction of the crushed sandstone–mudstone particle mixture, which is used as a filling material, are investigated in the present study. The value of the Maximum Dry Density, deduced from a standard compaction test, ranges from 2.08 to 2.13 g/cm3, and that of the optimum moisture content from 8.18 to 10.62 %. The value of the Maximum Dry Density increases, then decreases with the increment of the median particle diameter and gravel content. But the value of the optimum moisture content decreases, then increases with the increment of the median particle diameter or gravel content. The value of the average relative breakage ranges from 0.09 to 0.30, and it increases with the increment of the median particle diameter and gravel content. Compared to the mixture of sandstone particles only with the same grain size distribution curves, the mudstone particles mixed into sandstone particles may slightly increase the Maximum Dry Density and decrease the amount of particle crushing.
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Effects of mudstone particle content on compaction behavior and particle crushing of a crushed sandstone–mudstone particle mixture
Engineering Geology, 2013Co-Authors: Jun-jie Wang, Hui-ping Zhang, Di-ping DengAbstract:Abstract The present study focuses on the compaction behavior and particle crushing, during the compaction, of a crushed sandstone–mudstone particle mixture. Compaction tests and sieve analysis tests, in laboratory, were performed. The effects of the mudstone particle content, by weight, on the Maximum Dry Density, the optimum moisture content and the average relative breakage were analyzed. Testing results indicate that the values of the Maximum Dry Density and the optimum moisture content of the mixture are increasing then decreases with the increase of the mudstone particle content. While the mudstone particle content is about 60%, the Maximum Dry Density is near its Maximum. The average relative breakage, during the compaction, is decreasing quickly then increases slowly with the increase of the mudstone particle content. While the mudstone particle content is about 40%, the average relative breakage is near its minimum. Compared to those of a crushed sandstone particle mixture, the Maximum Dry Density of the crushed sandstone–mudstone particle mixture is greater, and the average relative breakage, during the compaction, is smaller.
Akshaya Kumar Sabat - One of the best experts on this subject based on the ideXlab platform.
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application of artificial intelligence to Maximum Dry Density and unconfined compressive strength of cement stabilized soil
Geotechnical and Geological Engineering, 2011Co-Authors: Pijush Samui, Akshaya Kumar SabatAbstract:This paper describes two artificial intelligence techniques for prediction of Maximum Dry Density (MDD) and unconfined compressive strength (UCS) of cement stabilized soil. The first technique uses various artificial neural network (ANN) models such as Bayesian regularization method (BRNN), Levenberg- Marquardt algorithm (LMNN) and differential evolution algorithm (DENN). The second technique uses the support vector machine (SVM) that is firmly based on the theory of statistical learning theory, uses regression technique by introducing e-insensitive loss function has been adopted. The inputs of both models are liquid limit (LL), plasticity index (PI), clay fraction (CF)%, sand (S)%, gravel Gr (%), moisture content (MC) and cement content (Ce). The sensitivity analyses of the input parameters have been also done for both models. Based on different statistical criteria the SVM models are found to be better than ANN models for the prediction of MDD and UCS of cement stabilized soil.
M J Pender - One of the best experts on this subject based on the ideXlab platform.
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Maximum Dry Density test to quantify pumice content in natural soils
Soils and Foundations, 2019Co-Authors: Mohammadsadeq Asadi, Rolando P Orense, Mohammad Asadi, M J PenderAbstract:Abstract Crushable volcanic soils are well-known for their distinctive texture, vesicular nature and grain fragility. These features of volcanic soils lead to difficulty in interpreting the results of laboratory and field testing because of the occurrence of particle crushing. Sands containing pumice particles are commonly found in the Hamilton Basin in the North Island of New Zealand. The pumice particles originated from a series of volcanic eruptions centered in the Taupo and Rotorua regions. As a result of flooding and erosion along the Waikato River, the pumice particles have become mixed with other materials and have been distributed over the Hamilton Basin; these mixtures are referred to herein as natural pumiceous (NP) sands. This paper initially investigates an appropriate technique for measuring the Maximum Dry Density (MDD) of NP sands; then a modified MDD test is proposed for estimating the pumice contents of these sands. In order to examine the applicability of different standard methods for determining MDD, New Zealand and Japanese standards are employed. The results using the Japanese standard show consistent MDD values when repeating the tests due to negligible particle crushing. On the other hand, the results of MDD tests according to the New Zealand standard indicate that a significant amount of particle crushing occurs after each repeated test and, consequently, it is not possible to get the same result when the test is repeated. NP sands reach their ultimate potential breakage during the modified MDD tests (at least, for the level of loading applied) and they experience different levels of particle crushing which may be a function of their pumice content. As a way forward, the relative breakages of the materials tested are used to estimate the pumice contents of the NP sands.