The Research of the Feasibility of Using Reclaimed Asphalt Pavement as a Material for Regenerated Low-Density Pervious Concrete

2013 ◽  
Vol 723 ◽  
pp. 703-710
Author(s):  
Sunn Jer Hwang ◽  
Chyi Sheu ◽  
Ying Wei Liu ◽  
Hsien Chou Chen
Keyword(s):  
Compressive Strength ◽  
Asphalt Pavement ◽  
Underground Water ◽  
Pervious Concrete ◽  
Reclaimed Asphalt Pavement ◽  
Low Density ◽  
Reclaimed Asphalt ◽  
Cement Binder ◽  
Strength Material ◽  
Base Course

The research is to compound (1) the Reclaimed Asphalt Pavement (RAP) with the asphalt penetration less than 15 (25°C, 5sec, 100g) and the gravel aggregates of the base course adopted from the existing roads, and (2) the cement binder into Regenerated Low-Density Pervious Concrete (RLDPC) whose the compressive strength is between 25 to 50 (kgf/cm2) and whose permeable capacity (ml/15sec) is greater than 600. The results show the RLDPC used as the pavement gravel gradation layer or as Controlled Low Strength Material (CLSM) that is more advantageous on (1) reducing the costs of re-filling pavement, (2) enhancing the durability of roads, and (3) increasing the flowing space of underground water.

scholarly journals Characteristics of masonry block that utilizes reclaimed asphalt pavement and waste cooking oil as the binder

2019 ◽  
Vol 276 ◽  
pp. 03001
Author(s):  
I Nyoman Arya Thanaya ◽  
I Nyoman Karnata Mataram ◽  
Bayu Setiawan
Keyword(s):  
Compressive Strength ◽  
Asphalt Pavement ◽  
Waste Cooking Oil ◽  
National Standard ◽  
Reclaimed Asphalt Pavement ◽  
Aggregate Gradation ◽  
Reclaimed Asphalt ◽  
Cooking Oil ◽  
Asphalt Content ◽  
Natural Aggregates

The availability of natural aggregate is getting limited, therefore it is required new alternative materials to substitute natural aggregates. Within this experiment reclaimed asphalt pavement (RAP) was used as masonry block with waste cooking oil as the binder. The objective of this experiment was to analyze the RAP asphalt content and aggregate gradation; and the samples characteristics particularly the compressive strength of masonry block minimum of 25 kg/cm2 that meet the Indonesian national standard SNI-03-0348-1989. The asphalt content of the RAP was initially extracted and tested for its aggregate gradation and specific gravity. The RAP was added 20% sand and a certain amount of waste cooking oil and evenly mixed. After that the mixture was compacted in a mould with a Marshall hummer, with compaction cycles for 15, 25, and 35 times where each cycle consists of 3 even blows. The size of the compacted samples were 20x10x8cm. After the samples were taken out from the mould, they were heated in an oven for 12 and 24 hours at 160°C and 200°C. It was found that the minimum waste cooking oil content required 4%. The best compressive strength was found on samples compacted at 15 compaction cycles and heated at 200°C for 24 hours. The un-soaked compressive strength was 80.5 kg/cm2 and 68.67 kg/cm2 for the soaked samples. In general the compressive strength well met the minimum 25 kg/cm2. Other best characteristics was found on samples heated at 160°C for 12 hours, with lowest water absorption of 5.64% and porosity of 4.53%. The Initial Rate of Suction (IRS) was 0,25~0,45 kg/m2.minute.

Improving the Compressive Strength of Reclaimed Asphalt Pavement Concretes with Silica Fume

2019 ◽  
Vol 44 (2) ◽  
pp. 675-682 ◽  
Author(s):  
Rim Larbi ◽  
El Hadi Benyoussef ◽  
Meriem Morsli ◽  
Mahmoud Bensaibi ◽  
Abderrahim Bali
Keyword(s):  
Compressive Strength ◽  
Silica Fume ◽  
Asphalt Pavement ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt

scholarly journals Evaluation performance of base course mixture containing reclaimed asphalt pavement (RAP)

2018 ◽  
Vol 162 ◽  
pp. 01037 ◽  
Author(s):  
Karim Al helo ◽  
Zaynab Qasim ◽  
Ahmed Majeed
Keyword(s):  
Asphalt Pavement ◽  
Stability Test ◽  
Reclaimed Asphalt Pavement ◽  
Test Results ◽  
Reclaimed Asphalt ◽  
Superpave Gyratory Compactor ◽  
Asphalt Mix ◽  
Asphalt Content ◽  
Base Course ◽  
Durability Performance

This paper presented the effect of addition of Reclaimed Asphalt Pavement (RAP) on performance of mixture with (20%, 30%, 40% and 50%) RAP as proportion of asphalt mix. To compare with virgin mixture marshall flow and stability test was used to evaluated durability performance with (0,1,3, and 7) days immersion and Wheel Truck test was used to evaluated the resist to rutting. The best gradation and optimum asphalt content was selected according to Superpave system. Superpave Gyratory Compactor (SGC) was used to compact mixture with 100-mm diameter. The test results indicated that addition of RAP to mixes showed significant increase on resistance of Durability and Rutting.

Construction Quality Control of Unbound Base Course using Light Weight Deflectometer where Reclaimed Asphalt Pavement Aggregate is Used as an Example

2020 ◽  
Vol 2674 (10) ◽  
pp. 989-1002
Author(s):  
Emre Akmaz ◽  
Saad Ullah ◽  
Burak F. Tanyu ◽  
Erol F. Guler
Keyword(s):  
Quality Control ◽  
Asphalt Pavement ◽  
Field Measurements ◽  
Design Criteria ◽  
Reclaimed Asphalt Pavement ◽  
Light Weight ◽  
Reclaimed Asphalt ◽  
Light Weight Deflectometer ◽  
Base Course ◽  
Unbound Aggregate

Reclaimed asphalt pavement (RAP) is already being recycled as a construction and building material. One of the commonly considered applications is to create an unbound aggregate from this material. However, since the particles of RAP have binder coatings, traditional quality control procedures applied during construction such as use of a nuclear density gauge does not provide accurate results. Therefore there is a need to find another method that can be applied during construction to confirm that the placement in the field meets the design criteria. For this reason, in this study, the suitability of using light weight deflectometer (LWD) has been investigated. The presented methodology outlines how to implement the use of LWD to create a target modulus in the laboratory as part of design criteria and compare with the field measurements. In the field, depending on the thickness of the constructed aggregate layer, the LWD measurements may be influenced by more than just the layer of interest. The presented methodology also provides a solution for such multilayer conditions. Although the study primarily focuses on using RAP as the investigated material, the methodology developed in this study can be applied to any type of unbound aggregate as demonstrated in this study.

Laboratory Investigation on the Fresh, Mechanical, and Durability Properties of Roller Compacted Concrete Pavement Containing Reclaimed Asphalt Pavement Aggregates

2019 ◽  
Vol 2673 (10) ◽  
pp. 652-662 ◽  
Author(s):  
Solomon Debbarma ◽  
Surender Singh ◽  
G. D. Ransinchung R.N.
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Abrasion Resistance ◽  
Asphalt Pavement ◽  
Strength Criterion ◽  
Concrete Pavement ◽  
Reclaimed Asphalt Pavement ◽  
Split Tensile Strength ◽  
Reclaimed Asphalt ◽  
Roller Compacted Concrete

The present study evaluates the potential and suitability of different fractions of reclaimed asphalt pavement (RAP) for roller compacted concrete pavement (RCCP) mixes. Natural coarse and fine aggregates were replaced, partially and in combination, by coarse RAP, fine RAP, and combined RAP for preparation of RCCP mixes. The considered properties to determine the optimum RAP fraction and its proportion for RCCP were fresh density and water demand, compressive strength, flexural strength, split tensile strength, porosity, water absorption, abrasion resistance, and performance in aggressive environments of chloride- and sulfate-rich ions. It was observed that inclusions of all the fractions of RAP considered could reduce the strength related properties of RCCP mixes significantly at all curing ages. However, fine RAP mixes were found to exhibit better strength properties than coarse RAP and combined RAP mixes. It was also observed that none of the RAP mixes could achieve the recommended compressive strength criterion of 27.6 MPa, however, they exhibited enough flexural strength to replace a fraction of conventional aggregates, individually or in combination, for construction using RCCP. In fact, 50% coarse and 50% fine RAP mixes had higher flexural strength than the target laboratory mean strength of 4.3 MPa. Similarly, these mixes were found to have sufficient abrasion resistance and could be included in RCCP (surface course) to be constructed in areas having high concentrations of chloride and sulfate ions. Additionally, the results also indicated that higher proportions of fine RAP may be suggested for RCCP mixes to be laid in sulfatic environments.

scholarly journals Compressive strength of cement stabilizations containing recycled and waste materials

2021 ◽  
Vol 73 (08) ◽  
pp. 791-804
Keyword(s):  
Compressive Strength ◽  
Asphalt Pavement ◽  
Dry Density ◽  
Reclaimed Asphalt Pavement ◽  
Maximum Dry Density ◽  
Reclaimed Asphalt ◽  
Optimal Moisture Content ◽  
Proctor Test ◽  
Pavement Structures ◽  
Full Factorial

This study analyses the possibilities of using up to 30% of reclaimed asphalt pavement as a substitute material for natural aggregate, along with fly ash replacing 20% or 40% of Portland cement in cement stabilizations with 4% and 6% of binder. The Proctor test was used to determine maximum dry density and optimal moisture content of cement-based stabilizations. The compressive strength was tested after 7, 28, and 90 days. Parameters influencing 28-day compressive strength were evaluated by full factorial design and by classification in strength classes. The results obtained justify the utilisation of waste and recycled materials in pavement structures.

scholarly journals Use of Reclaimed Asphalt Pavement in Conjunction with Ground Improvement: A Case History

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Kevin C. Foye
Keyword(s):  
Asphalt Pavement ◽  
Ground Improvement ◽  
Reclaimed Asphalt Pavement ◽  
Improvement Program ◽  
Laboratory Findings ◽  
Reclaimed Asphalt ◽  
Parking Lot ◽  
Base Course ◽  
Accepted Practice ◽  
Technical Construction

The use of Reclaimed Asphalt Pavement (RAP) in lieu of virgin crushed stone aggregate is becoming a widely accepted practice for a number of construction applications, particularly pavement base courses. A number of laboratory RAP studies have considered the mechanical properties of RAP bases in order to support pavement designs incorporating RAP. These studies have revealed a number of interesting relationships between RAP moisture content, compaction, and stiffness. This paper discusses the experiences of a design-build contractor integrating a geosynthetic ground improvement program with a RAP base during the reconstruction of a 1.95 ha asphalt parking lot. Field observations of base course construction with RAP explore some of the implications of laboratory findings. A number of interesting observations on the technical, construction, and economic issues resulting from the project challenges and the use of RAP are presented.

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