Performance Evaluation of Bedding Sand and Load Transfer Characteristic of Concrete Block Pavements
Abstract
:1. Introduction
2. Materials and Experimental Methods
2.1. Material
2.1.1. Sand
2.1.2. Concrete Block
2.2. Experimental Methods
2.2.1. Bedding Sand Performance
2.2.2. Load Transfer and Rotational Interlocking
3. Results
3.1. Performance of Bedding Sand
3.2. Evaluation of Joint Performance
3.2.1. Load Transfer Characteristics of Joint
3.2.2. Rotational Interlocking of Block
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Manufactured Sand | Quartz Sand | River Sand | |
---|---|---|---|
Density (g/cm3) | 2.795 | 2.735 | 2.771 |
Absorption (%) | 0.70 | 0.67 | 0.70 |
Angularity (s) | 33.2 | 33.6 | 34.8 |
Sand equivalent (%) | 89 | 68 | 74 |
Mica content (%) | 0.4 | 0.4 | 0.5 |
Hardness (%) | 3 | 3 | 3 |
Block shapes | Square | Rectangular | Uni block | Dasuri | |
Dimension L × W × H (mm) | 200 × 200 × 80 | 200 × 100 × 80 | 245 × 130 × 80 | 200 × 100 × 80 | |
Shape factor | 1.61 | 2.42 | 2.53 | 2.62 | |
Lying patterns | Stack | Basket weave | Herringbone | ||
| | | |
Square | Rectangular | Uni Block | Dasuri | ||
---|---|---|---|---|---|
Flexural strength (MPa) | AVG. | 4.53 | 4.77 | 5.23 | 4.91 |
STDEV. | 0.21 | 0.51 | 0.25 | 0.24 | |
Dynamic modulus (GPa) | AVG. | 13.47 | 12.09 | 15.38 | 13.57 |
STDEV. | 1.81 | 1.86 | 2.71 | 1.71 | |
Bulk Density (kg/mm3) | 2.31 | 2.42 | 2.21 | 2.40 |
Parameter | Vertical Stress, kPa | Internal Angle | |||
---|---|---|---|---|---|
50 | 100 | 150 | |||
Shear Strength, kPa | |||||
Sand type | Quartz sand | 20.67 | 41.34 | 77.45 | 23.99° |
Manufactured sand | 19.08 | 39.75 | 71.89 | 22.72° | |
River sand | 22.26 | 44.52 | 82.22 | 25.01° | |
0.6 mm passing ratio (River sand) | 60% | 25.44 | 47.70 | 74.73 | 26.23° |
40% | 28.62 | 50.88 | 79.50 | 26.96° | |
20% | 27.03 | 50.88 | 76.32 | 26.24° | |
0.075 mm content (River sand) | 1% | 22.26 | 44.52 | 71.55 | 24.00° |
3% | 25.44 | 50.88 | 74.73 | 26.23° | |
5% | 30.21 | 55.65 | 79.5 | 26.97° |
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Lin, W.; Dong, Y.; Jung, Y.; Zheng, H.; Cho, Y.-h. Performance Evaluation of Bedding Sand and Load Transfer Characteristic of Concrete Block Pavements. Appl. Sci. 2021, 11, 10111. https://doi.org/10.3390/app112110111
Lin W, Dong Y, Jung Y, Zheng H, Cho Y-h. Performance Evaluation of Bedding Sand and Load Transfer Characteristic of Concrete Block Pavements. Applied Sciences. 2021; 11(21):10111. https://doi.org/10.3390/app112110111
Chicago/Turabian StyleLin, Wuguang, Yu Dong, YooSeok Jung, Hua Zheng, and Yoon-ho Cho. 2021. "Performance Evaluation of Bedding Sand and Load Transfer Characteristic of Concrete Block Pavements" Applied Sciences 11, no. 21: 10111. https://doi.org/10.3390/app112110111
APA StyleLin, W., Dong, Y., Jung, Y., Zheng, H., & Cho, Y.-h. (2021). Performance Evaluation of Bedding Sand and Load Transfer Characteristic of Concrete Block Pavements. Applied Sciences, 11(21), 10111. https://doi.org/10.3390/app112110111