scholarly journals Test Study on Road Performance of Soils Stabilized by Liquid Stabilizer in Seasonally Frozen Regions

2012 ◽  
Vol 5 ◽  
pp. 310-315 ◽  
Author(s):  
Yao Chen ◽  
Yi Qiu Tan
Keyword(s):  
Water Resistance ◽  
Base Material ◽  
Road Construction ◽  
Penetration Resistance ◽  
Comprehensive Investigation ◽  
Test Study ◽  
Stabilized Soil ◽  
Road Performance ◽  
Modulus Of Resilience ◽  
Seasonally Frozen Regions

In seasonally frozen regions, road construction often suffers from low strength,lack of durability, etc. Improving the typical clay’s workability in Changchun with lime and the Base-Seal stabilizer (BS-100) shows promising results. A comprehensive investigation to assess the soil characteristics influence is undertaken, so as the lime and liquid stabilizer (BS-100) content on the physical properties of stabilized soils in seasonally frozen regions. The optimum mix proportions, unconfined compressive strength, splitting strength, modulus of resilience, freeze-thaw action, water resistance and penetration-resistance were outlined. By comparing with current specifications, the Base-Seal stabilized soil as base material has higher early strength, higher after-strength and better frost stability.The results can be applied in road construction in seasonally frozen regions.

Road Performance Test and Application of TerraZyme Solidification Soil

2013 ◽  
Vol 295-298 ◽  
pp. 452-462
Author(s):  
Lan Gui ◽  
Yue Jun Li ◽  
Zeng Guang Li
Keyword(s):  
Performance Test ◽  
Construction Materials ◽  
Field Tests ◽  
Road Construction ◽  
Engineering Practice ◽  
Construction Technology ◽  
The Road ◽  
New Material ◽  
Road Performance ◽  
Modulus Of Resilience

TerraZyme is a completely different and new material for constructing road compared to the traditional road construction materials. Through the indoor and field tests of TerraZyme solidification soil, the road performance (e.g., unconfined compression strength, CBR value，modulus of resilience, hydraulic conductivity etc) of TerraZyme solidification soil was analyzed systematically. Meanwhile, the changing patterns in the case of various construction technology and different maintenance conditions were discussed. Then, the quality control index and measure for construction were presented. By validating the adaptability of TerraZyme solidification technology in engineering practice, it showed that the technology of TerraZyme solidification soil have many advantages such as no pollution, simple and convenient construction, higher solidified strength, good water stability and lower cost. Therefore, it can be broadly popularized and applied in the engineering practice.

Durability of Cement Stabilized Cold-Recycled of Asphalt Pavement Materials

2012 ◽  
Vol 174-177 ◽  
pp. 1188-1192 ◽  
Author(s):  
Lian Yu Wei ◽  
Zhi Yu Guo
Keyword(s):  
Asphalt Pavement ◽  
Base Material ◽  
Road Construction ◽  
Thermal Shrinkage ◽  
Construction Process ◽  
Pavement Materials ◽  
Road Base ◽  
Wide Range ◽  
Dry Shrinkage ◽  
Recycled Material

In recent years, due to the dual pressures of resources and the environment,the clod recycled technology renovation and expansion of the old road and new road construction process increasingly attention increasingly wide range of applications. In this paper, the water stability of the cold recycled materials in asphalt pavement on cement additives, frozen stability, thermal shrinkage resistance, dry Shrinkage thefour indicators of experiments to evaluate its durability, and compared with the typical semi-rigid material. To verify the feasibility of the cold recycled material as road base material.

scholarly journals IMPACT OF FIBER DIAMETER ON-ROAD PERFORMANCE OF CEMENT-STABILIZED MACADAM

2017 ◽  
Vol 12 (1) ◽  
pp. 12-20 ◽  
Author(s):  
Zhijun Liu ◽  
Dongquan Wang ◽  
Xiaobi Wei ◽  
Liangliang Wang
Keyword(s):  
Water Loss ◽  
Loss Rate ◽  
Surface Effect ◽  
Fiber Diameter ◽  
Base Material ◽  
The Road ◽  
Water Loss Rate ◽  
Reinforced Cement ◽  
Road Performance ◽  
The Impact

Cement-stabilized macadam is the most widely used road base material in road engineering. The current study investigated the impact of fiber diameter on its performance. The authors prepared polyester fibers with diameters of 20, 35, 70, and 105 μm and added them to cement-stabilized macadam. Then, the indoor shrinkage tests and mechanical property tests at different ages were conducted. Then, the property changes of the polyester-reinforced cement-stabilized macadam were analysed. The water loss rate of the polyester-reinforced cement-stabilized macadam is subject to the combined influence of the “water loss surface effect” and “water loss porthole effect.” With increasing fiber diameter, the water loss surface effect becomes stronger, and the water loss porthole effect gradually decreases; thus, the overall effect transitions from the latter to the former. Moreover, the water loss rate shows an increasing trend of decreasing to its minimum. Therefore, with increasing fiber diameter, the average dry shrinkage coefficient of the polyester-reinforced cement-stabilized macadam first increases and then decreases, while the temperature shrinkage coefficients increase. The change in the fiber diameter does not significantly affect the compressive resilient modulus of the polyester-reinforced cement-stabilized macadam if the fiber content remains constant. These findings demonstrate the functional mechanism of the fiber diameter on the road performance of cement-stabilized macadam, thus improving our understanding of the road performance of the polyester-reinforced cement-stabilized macadam and laying a solid theoretical foundation for its many applications.

Preparation and Characterization of Bio-Degradable Plastic from Banana Kepok Peel Waste

2020 ◽  
Vol 981 ◽  
pp. 132-137
Author(s):  
Suharno Rusdi ◽  
Ridwan A. Destian ◽  
Fitratur Rahman ◽  
Achmad Chafidz
Keyword(s):  
Water Resistance ◽  
Raw Materials ◽  
Human Life ◽  
Base Material ◽  
High Water ◽  
Plastic Waste ◽  
Banana Peel ◽  
Recycled Plastics ◽  
Almost All

Everyday human life cannot be separated from plastic. Almost all objects that are around us are made of plastic. In general, plastics are non-biodegradable, causing environmental problems caused by the increased volume of plastic waste. One way to overcome this is by recycling existing plastic waste. But the use of recycled plastics is very limited and considered inefficient because the process is more difficult and processing is more expensive than buying new plastic raw materials. Another alternative is to use bioplastics or biodegradable plastic. This plastic is more environmentally friendly because it is biodegradable or easily decomposed by microorganisms. Basically, bioplastics can be made from vegetable starches. In this study we will use starch extracted from banana peel waste as a base material for making bioplastics. In this research, glycerin which is used as a bioplastic adhesive or plasticizer will be used. Whether or not bioplastics depend on the resistance to water, the attractiveness of the bioplastics, the ability of the plastic to be decomposed by microorganisms. From this research, it is expected to produce bioplastics with high water resistance and high tensile strength and easy to decompose microorganisms.

Laboratory and Field Test Study on Fly Ash as Subgrade Filling

2010 ◽  
Vol 146-147 ◽  
pp. 859-864
Author(s):  
Huan Ling Wang ◽  
Miao He
Keyword(s):  
Fly Ash ◽  
Field Test ◽  
Low Cost ◽  
Construction Technology ◽  
Construction Process ◽  
The Road ◽  
Test Study ◽  
Wide Range ◽  
Road Performance ◽  
Gravel Pile

Fly ash has become increasingly wide range of applications in expressway as a new environment friendlymaterial, its range of applications are fromthe CFG( Cement Fly-ash Gravel) pile of soft ground、pavement admixture to embankment materials et al. Fly ash used in expressway has many advantages, such as, it can save farmland, has a small settlement after construction and low cost as a light embankment filling. In this paper, based on an expressway in Jiangsu province, the fly ash used as a subgrade filling, a series of fly ash laboratory and field test have been conducted. The construction technology, important construction parameters, construction process control and compaction quality assessment on fly ash have been analyzed on the basis of the tests result, the road performance and construction control key methods of fly ash obtained, which can guide scientific construction.

Test Study on Overdose Cement Stabilized Crushed Rock Base

2011 ◽  
Vol 415-417 ◽  
pp. 254-260 ◽  
Author(s):  
Yan Peng Lin ◽  
Jia Liu
Keyword(s):  
Asphalt Pavement ◽  
Low Cost ◽  
Base Material ◽  
Primary Stability ◽  
High Strength ◽  
Crushed Rock ◽  
Premature Failure ◽  
Soil Plasticity ◽  
The Road ◽  
Test Study

The early disease of semi-rigid asphalt pavement disease will seriously affect the quality and durability of road usage and the life of the road. Water into the pavement layer cause water content increases and the strength greatly reduced in primary or sub-base material which contends more soil and greater soil plasticity index. Resulting in premature failure of asphalt pavement, and the road surface rutting greater is the insufficient primary strength. The use of water overdose primary stability can fully play its high strength and low cost advantages, but also has a low shrinkage, minimize shrinkage cracks.

scholarly journals Road performance analysis of cement stabilized coal gangue mixture

2021 ◽  
Author(s):  
Zhenxia Li ◽  
Tengteng Guo ◽  
Yuan Zhao Chen ◽  
Xu Zhao ◽  
Yanyan Chen ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Optimal Allocation ◽  
Spontaneous Combustion ◽  
Base Material ◽  
Coal Gangue ◽  
Stone Materials ◽  
Road Performance ◽  
Dry Shrinkage

Abstract In order to solve the environmental pollution of coal gangue and the shortage of aggregate resources in road engineering, waste coal gangue is used as road base material instead of natural stone materials. Through physical, mechanical, chemical and activity tests of coal gangue aggregate, the optimal gradation composition of unconfined compressive strength was determined. Through unconfined compressive strength, indirect tensile strength, flexural tensile strength, freeze-thaw and dry shrinkage tests, the influence of cement content on road performance of cement stabilized coal gangue mixture was studied. By means of SEM, ICP AES, XRD and optical digital microscope, the difference between spontaneous combustion coal gangue and Unspontaneous combustion coal gangue was analyzed, the microstructure of cement stabilized coal gangue mixture was characterized, and the strength formation mechanism of mixture was explored. The results show that Spontaneous combustion coal gangue has higher activity than Unspontaneous combustion coal gangue.Based on the selected optimal allocation（BNS:SNS:SSC =71.26:9.41:18.8）,The mixture of 4% cement dosage can not only meet the requirement of early strength 4.16 MPa, but also show an efficient strength growth rate of 36.10%, showing the optimum mechanical properties. The total shrinkage coefficient of cement stabilized coal gangue mixture with 4% cement dosage is 1.12×10-2, which shows that the dry shrinkage resistance is the best. With the increase of time, hydration degree is gradually deepened, and gelled substance is more tightly bonded to aggregates. There is no obvious gap between aggregates, and the integrity of the mixture is enhanced, which can show better road performance. Ca (OH)2, a cement hydration product in cement stabilized coal gangue mixture, takes place pozzolana reaction with active SiO2 and Al2O3 in coal gangue to produce gismondine, which is beneficial to the global strength and the bond quality of the mixture.

scholarly journals Cement Stabilized Soil as a Road Base Material for use in Sri Lankan Roads

2017 ◽  
Vol 50 (1) ◽  
pp. 21 ◽  
Author(s):  
W. W. Bandara ◽  
W. K. Mampearachchi ◽  
K. H. S. M. Sampath
Keyword(s):  
Base Material ◽  
Sri Lankan ◽  
Road Base ◽  
Stabilized Soil
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