Fines inclusion in a crushed limestone unbound aggregate base course material with 25.4-mm maximum particle size

Osouli, Abdolreza; Salam, Sajjad; Tutumluer, Erol; Shoup, Heather

doi:10.1016/j.trgeo.2017.02.001

Cited by 14 publications

(3 citation statements)

References 5 publications

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“…Laboratory tests, that were carried out have shown that further enhancement of the content of fine fractions, when the maximum soil compaction have been reached, contribute to the increase of the amount of water in the soil sample, that is necessary to obtain the optimal moisture content (OMC), while the dry density decreases (MDD) -see Figures 5 and 6. Non-linear dependence between the compactibility parameters (the maximum dry density and optimum moisture content), that were obtained in the Proctor Compaction and the fine fraction content was also confirmed by many papers regarding both natural and stabilized soils (Hossain et al, 2016;Sulewska & Tymosiak, 2018;Gupta & Thomas, 2013;Wright et al, 1996;Zhemchuzhnikov et al, 2016;Osouli, Salam, Tutumluer, & Shoup, 2017). This clear relationship developed between the compactibility parameters and the CBR value causes that numerous scientific studies attempt to predict the CBR value based on Maximum Dry Density (MDD), Optimum Moisture Content (OMC), the content of sand, clay or silt fractions (Sreelekshmypillai & Vinod, 2017;Katte, Mfoyet, Manefouet, Wouatong, & Bezeng, 2019).…”

Section: Resultssupporting

confidence: 53%

The Influence of Fine Fractions Content in Non-Cohesive Soils on Their Compactibility and the CBR Value

Bąk

Chmielewski

2019

Journal of Civil Engineering and Management

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The bearing capacity of subsoils is particularly important due to the intensive development of road and airfield pavements. Subgrade is classified due to frost susceptibility as non-frost-susceptible, low-frost-susceptible or frost-susceptible. Presented research included laboratory tests of low-frost-susceptible soils with limited potential for direct use. The main objective of this paper was focused on the study of changes of compactibility parameters and the CBR (Californian Bearing Ratio) values of silty sand (Pπ). For this purpose, seventeen soil samples with various fine fractions content (of 1.6% to 24.2%), were composed. Laboratory tests, based on soaked soil samples, encompassed the Proctor Compaction test and the CBR test. Additionally, measurements of moisture content in soaked soil samples before and after the penetration test and the displacement of annular surcharge rings while penetration test, were performed. Obtained results allowed for conclusions that penetration curves diverge from the standard curve locally, therefore direct reading of the CBR values from the penetration curves may lead to its significant overstatement. There was also noticed the dependence between the water flow in the soil and the fine fraction content. The research recognized the need for pressure measurement in soil samples during the penetration test.

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Section: Resultssupporting

confidence: 53%

The Influence of Fine Fractions Content in Non-Cohesive Soils on Their Compactibility and the CBR Value

Bąk

Chmielewski

2019

Journal of Civil Engineering and Management

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“…The general condition of the roads in the Sarmi area is not good, because most of them have been asphalted, but they have undergone damage even though they have not reached the design life. Therefore, this research is necessary to develop a strong flexible pavement structure using local materials in Sarmi Regency, Papua Province, Indonesia, in the form of limestone, crushed stone, aggregate for the surface course, limestone for the base course [23][24][25], and subgrade testing in road construction in Sarmi Regency and its surroundings, to save cost and time and thus the distribution of goods and services in all regions can run well and provide welfare for the community.…”

Section: Introductionmentioning

confidence: 99%

Development of Flexible Pavement Structure Using the Local Materials of Sarmi, Papua , Indonesia - Based on Indonesian National Specification

Siahaya¹

2023

GEOMATE

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Roads are the important thing in development to open regional isolation, including in Sarmi Regency, Papua Province, which is a new expansion area that promotes infrastructure development, especially roads that require material imported from outside the region and will take time and cost. Therefore, using local natural resources is highly recommended. However, it has not been tested in the laboratory. The condition of the road is not good, because it has been paved although has not reached its design life and it has been damaged. Thus, it is necessary to develop a flexible pavement structure using the Indonesian Specification using local materials. A thin layer of Hot Rolled Sheet (HRS) was chosen because Sarmi has a low traffic volume. This research was conducted at the Laboratory the Regional office of public work at Papua Laboratory and the National laboratory Office at Bandung, Laboratory, consisting of 3 parts, namely Surface Course Testing using Crushed Stone and Iron Sand as local materials from Sarmi Papua Quarry (Sample 1), which were then compared to standard materials from Bandung (Sample 2). The results show that Sample 1 had greater stability, was more elastic, more dynamic, and had better resistance carrying loads compared to Sample 2. From the Base Course Testing, the result of compressive strength was within the requirements, 7% (2,343 MPa > 2 MPa), and from the CBR Subgrade Testing, Soaked CBR = 29,5% > 6%. The test results can be recommended as materials that can be used in Sarmi Regency and surrounding areas.

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“…Fattah et al (2016) observed that CBR increased when stone fines increased Inan et al (2016). andOsouli et al (2017) demonstrated that CBR decreased with the increase in Fc Yoder et al (1975). presented that the highest value of CBR was reached when Fc values ranged from 6 to 8 % Taherkhani et al, (2016).…”

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confidence: 98%

Effects of fines content and maximum particle size on mechanical properties and saturated hydraulic conductivity of recycled concrete aggregates for unbound roadbed materials in Vietnam

Thai

Kato

Nguyen

et al. 2021

JGS Special Publication

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Road base layers play an important role in bearing, transmitting, and distributing part of the load to the underground. Unbound aggregates crushed from natural rock are the most popular materials used to construct the base layers of the pavements. However, nowadays the sources of natural materials have been increasingly exhausted and the pollution from construction and demolition waste (CDW) is a big problem in Vietnam. Therefore, the utilization of CDW for recycling is a crucial issue to reduce the generation amount of CDW and consumption of natural resources. With regards to the applicability of recycled concrete aggregates (RCA) to unbound roadbed materials, many studies have been done to investigate the effect of grading of particles on mechanical properties. However, the effect of other factors such as maximum particle size (Dmax) and fines content (Fc in wt.%; typically, with particle size less than 0.075 mm) have not been fully understood. In this study, concrete waste taken from a CDW landfill in Vietnam and was crushed and sieved to prepare graded RCA samples for a series of laboratory tests to characterize mechanical properties such as compaction, bearing capacity, and saturated hydraulic conductivity. The graded RCA samples with two different Dmax, 25 and 37.5 mm, and four different Fc values ranging from 0 to 20 %, were prepared. This study showed that maximum dry density (MDD) and CBR value of graded aggregates with Dmax = 25 and 37.5 mm reached the highest values at Fc = 5%. Except for the sample with Fc = 20 % and Dmax = 25 mm, the measured CBR values of tested samples satisfied the technical requirements of Vietnamese and Japanese standards. Besides, the particle breakage of aggregates and saturated hydraulic conductivity were highly controlled by Fc and both values decreased with increasing in Fc.

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Fines inclusion in a crushed limestone unbound aggregate base course material with 25.4-mm maximum particle size

Cited by 14 publications

References 5 publications

The Influence of Fine Fractions Content in Non-Cohesive Soils on Their Compactibility and the CBR Value

The Influence of Fine Fractions Content in Non-Cohesive Soils on Their Compactibility and the CBR Value

Development of Flexible Pavement Structure Using the Local Materials of Sarmi, Papua , Indonesia - Based on Indonesian National Specification

Effects of fines content and maximum particle size on mechanical properties and saturated hydraulic conductivity of recycled concrete aggregates for unbound roadbed materials in Vietnam

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