Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers
The bearing capacity, stability, and durability of subgrade are affected by the compaction quality of fillers to a large extent. In this study, samples of graded coarse-grained fillers with different rock block contents were designed and prepared with the aid of an improved continuous gradation equa...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2021-11-01
|
| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2021.782966/full |
| _version_ | 1818827135590072320 |
|---|---|
| author | Lili Cai Shengnian Wang Xinqun Gao Guoyu Li |
| author_facet | Lili Cai Shengnian Wang Xinqun Gao Guoyu Li |
| author_sort | Lili Cai |
| collection | DOAJ |
| description | The bearing capacity, stability, and durability of subgrade are affected by the compaction quality of fillers to a large extent. In this study, samples of graded coarse-grained fillers with different rock block contents were designed and prepared with the aid of an improved continuous gradation equation for coarse-grained soils. Then standard compaction tests of these samples with different water content conditions were conducted to understand the influence of rock block content on the compaction characteristics of graded coarse-grained fillers. Results show that the compaction curve peaks of graded coarse-grained fillers always increase with the rock block content. The maximum dry density of graded coarse-grained fillers increases linearly with the rock block content in approximation, while the optimal water content is the opposite. The optimal water content of graded coarse-grained fillers decreases in nonlinearity with characteristics of rapidly first and then slowly. Two empirical formulas about the rock block content were summarized for predicting the maximum dry density and optimal water content of graded coarse-grained fillers. The results of this study can provide a reference for the engineering application of graded coarse-grained fillers. |
| first_indexed | 2024-12-19T00:38:45Z |
| format | Article |
| id | doaj.art-68c8f9d18f6a4e74baf1ad13763109cb |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-19T00:38:45Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-68c8f9d18f6a4e74baf1ad13763109cb2022-12-21T20:44:41ZengFrontiers Media S.A.Frontiers in Physics2296-424X2021-11-01910.3389/fphy.2021.782966782966Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained FillersLili Cai0Shengnian Wang1Xinqun Gao2Guoyu Li3JSTI Group, Nanjing, ChinaCollege of Transportation Science and Engineering, Nanjing Tech University, Nanjing, ChinaCollege of Transportation Science and Engineering, Nanjing Tech University, Nanjing, ChinaState Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, ChinaThe bearing capacity, stability, and durability of subgrade are affected by the compaction quality of fillers to a large extent. In this study, samples of graded coarse-grained fillers with different rock block contents were designed and prepared with the aid of an improved continuous gradation equation for coarse-grained soils. Then standard compaction tests of these samples with different water content conditions were conducted to understand the influence of rock block content on the compaction characteristics of graded coarse-grained fillers. Results show that the compaction curve peaks of graded coarse-grained fillers always increase with the rock block content. The maximum dry density of graded coarse-grained fillers increases linearly with the rock block content in approximation, while the optimal water content is the opposite. The optimal water content of graded coarse-grained fillers decreases in nonlinearity with characteristics of rapidly first and then slowly. Two empirical formulas about the rock block content were summarized for predicting the maximum dry density and optimal water content of graded coarse-grained fillers. The results of this study can provide a reference for the engineering application of graded coarse-grained fillers.https://www.frontiersin.org/articles/10.3389/fphy.2021.782966/fullgraded coarse-grained fillercompaction characteristicsrock block contentmaximum dry densityoptimum water contentempirical formulas |
| spellingShingle | Lili Cai Shengnian Wang Xinqun Gao Guoyu Li Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers Frontiers in Physics graded coarse-grained filler compaction characteristics rock block content maximum dry density optimum water content empirical formulas |
| title | Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers |
| title_full | Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers |
| title_fullStr | Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers |
| title_full_unstemmed | Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers |
| title_short | Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers |
| title_sort | influence of rock block content on compaction characteristics of graded coarse grained fillers |
| topic | graded coarse-grained filler compaction characteristics rock block content maximum dry density optimum water content empirical formulas |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2021.782966/full |
| work_keys_str_mv | AT lilicai influenceofrockblockcontentoncompactioncharacteristicsofgradedcoarsegrainedfillers AT shengnianwang influenceofrockblockcontentoncompactioncharacteristicsofgradedcoarsegrainedfillers AT xinqungao influenceofrockblockcontentoncompactioncharacteristicsofgradedcoarsegrainedfillers AT guoyuli influenceofrockblockcontentoncompactioncharacteristicsofgradedcoarsegrainedfillers |