Investigations on design and durability characteristics of cement treated reclaimed asphalt for base and subbase layers

Kasu, Sridhar Reddy; Manupati, Kumar; Muppireddy, Amaranatha Reddy

doi:10.1016/j.conbuildmat.2020.119102

Cited by 20 publications

(10 citation statements)

References 11 publications

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“…At the same time, the use of cement treated recycled glass up to 30% along with the other recycled materials achieved required strength properties [3]. Besides, it is estimated from the study that 26-32% of cost savings with the cement stabilization of the recycled aggregates [4].…”

Section: Introductionmentioning

confidence: 94%

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Applications of Cement in Pavement Engineering

Chakravarthi¹,

Kumar²,

Shankar³

2021

Cement Industry - Optimization, Characterization and Sustainable Application

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Recycled materials primarily Reclaimed Asphalt Pavement (RAP), and Recycled Concrete Aggregate (RCA) are produced from pavement rehabilitation and construction-demolition activities. Generally, these materials are utilized for landfills, parking lots, shoulders, and other places that are not environmentally friendly. The top layers of the pavement and concrete structures are constructed using superior qualities of aggregates that satisfy the specification. During their service life, the aggregates present in these structures undergo deterioration due to environmental and traffic factors. After reaching the end of their service life, the deteriorated structures are dismantled and considered as waste. Nevertheless, these recycled materials will have some retain value which can be used in different layers of the pavements in different percentages. The reuse of these materials in place of conventional aggregates preserves the environment and become a sustainable construction practice. Further, the direct utilization of these materials in the pavements may not satisfy the mechanical characteristics. To fulfill these gaps, cement stabilization of recycled materials is the best option. With this background, the proposed book chapter will highlight the usage of cement in pavement application, and a few types of research works carried in cement treated pavement layers will be discussed in a detailed and scientific manner.

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Section: Introductionmentioning

confidence: 94%

“…Kasu et al 2020 [4] Cement content in the mix has a significant influence on the mechanical and durability properties compared with recycled aggregate contents.…”

Section: Author Year Conclusionmentioning

confidence: 99%

Applications of Cement in Pavement Engineering

Chakravarthi¹,

Kumar²,

Shankar³

2021

Cement Industry - Optimization, Characterization and Sustainable Application

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“…Cement treated mixtures of recycled asphalt aggregate and virgin aggregate have improved the mechanical and durability properties of granular layers in flexible pavements. It is recommended that cement treated recycled aggregate can be used in cementitious bases, provided they meet the MoRTH recommendations [19]. Cement treated Reclaimed Asphalt Pavement and Recycled Concrete Aggregate can be cost beneficial road construction material for replacement of granular layers in flexible pavement [20].…”

Section: Background Studiesmentioning

confidence: 99%

Ferrochrome Slag characterization and its compatibility with Quarry dust in Flexible pavement

Ajay

Rani

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Exhaustion of locally available materials and increasing hauling charges gained the potential for the exploration of cost-effective alternative materials in the construction industry. Broad endeavours have been made over numerous years on the utilization of industrial waste, yet scant exploration is being done on ferrochrome slag. Ferrochrome slag is an industrial by-product obtained from stainless steel production. Several highway laboratory tests on the characterization of ferrochrome slag are carried out, and the physical and mechanical properties of ferrochrome slag are observed to fulfil MoRTH specifications. Deficiency of fines is observed in the gradation of ferrochrome slag, so quarry dust is incorporated for mechanical stabilization. Ferrochrome slag and quarry dust are blended in different proportions to check the gradation suitability as sub-base and base courses in flexible pavement. Modified Proctor Method of compaction is performed for the ferrochrome slag and quarry dust combinations to carry out the California Bearing Ratio (CBR) test at Maximum Dry Density (MDD) and Optimum Moisture Content (OMC). Studies have shown that the combinations of ferrochrome slag and quarry dust in 70/30 and 60/40 proportions are well graded and have reached the required gradation for use as cement-treated sub-base and base layers in flexible pavement.

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“…Such materials could be combined in the pavement as a base layer. Kasu et al [28] investigated the content of recycled asphalt, virgin aggregate, and cement in cement bound mixtures. The authors stated that an optimum ratio of recycled asphalt to virgin aggregate is 30 to 70 percent.…”

Section: Recycled Asphalt Pavement (Rap)mentioning

confidence: 99%

Prevention and remediation measures for reflective cracks in flexible pavements

2022

JCE

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Considering the high price and the number of natural resources used in transport infrastructure, extending pavement lifetime is a priority for engineers. One of the most common issues in flexible pavement maintenance are reflective cracks, which reduce driving comfort and passenger safety. These cracks have two main origins, those initiated by shrinkage of the cement stabilized layer and the cracks reflected from the old pavement to a new overlay. During road maintenance, the usual remediation measure is to overlay and place a new asphalt wearing course over the old, deteriorated pavement surface. After an asphalt overlay is placed on the deteriorated pavement, the overlay can exhibit an identical crack pattern as the layer below. The main cause of reflective cracks is in the cement bound base course (CBC). Due to cement hydration, traffic load, and temperature oscillations, cracks may occur and propagate through upper layers. Much research has been conducted to prevent this problem. Some research, with an emphasis on recycled materials, is presented in this paper. The remediation measures include thin and thick interlayers and modification of the asphalt overlay characteristics.

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Investigations on design and durability characteristics of cement treated reclaimed asphalt for base and subbase layers

Cited by 20 publications

References 11 publications

Applications of Cement in Pavement Engineering

Applications of Cement in Pavement Engineering

Ferrochrome Slag characterization and its compatibility with Quarry dust in Flexible pavement

Prevention and remediation measures for reflective cracks in flexible pavements

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