Micro Surfacing Asphalt Pavement as a Mitigation Measure at Accident’s Prone Area along East Coast Expressway Phase 2 (ECE 2) (original) (raw)

Performance evaluation of asphalt micro surfacing – a review

IOP Conference Series: Materials Science and Engineering

In spite the fact that micro surfacing receives accolades by researchers of being the most cost-effective, environmentally friendly, and functionally viable pavement preventive maintenance amongst the various asphalt surface treatments (AST). However, there has not been a universally standardised mix design, acceptable material type, compatible polymer-binder combination, laboratory-field correlational performance tests, and its field dependency performance indicators. The requirements set by the International Slurry Surfacing Association (ISSA), Malaysian Jabatan Kerja Raya (JKR-public works department) and American Society for Testing and Materials (ASTM) are stated to be guides. This study brings to fore the challenges, methodologies adopted and successes recorded towards solving the aforementioned concerns by various researches globally from existing literatures with emphasis on material-type effects, mix design methodology, serviceability/environmental performance, incorporatio...

MICRO-SURFACING: AN ECO-FRIENDLY BAILOUT FOR INDIAN ROADS

A well designed, developed and maintained highway system plays a vital role in socio-economic development of any country. A well maintained highway network is credited for bringing about improvements in access to goods and services, education and employment opportunities. It has been very well accepted worldwide that preventive maintenance of existing roadways is most effective use of available financial resources. Recent developments in cold mix technology in the area of cost effective preventive maintenance treatment have resulted durable pavements. Asphalt emulsion based micro surfacing is such a cost effective and environment friendly, preventive maintenance technology. Microsurfacing was developed in Germany and now commonly used for road maintenance in numerous countries. In Dec. 2008 Indian Road Congress has published "IRC: SP: 81; Tentative Specification for Slurry Seal and Microsurfacing" to standardized this technology for wider application in the country. Microsurfacing act as a sealant over the pavement surfaces. It prohibits the entrance of water from the surface course to base course and prolong the service life of the bituminous pavement by 3 to 4 years. Besides acting as sealant it helps to maintain good riding quality for vehicular traffic.

Microsurfacing – an Eco-Efficient Tool for Road Safety and Pavement Maintenance

With the development of infrastructure, in rapidly developing modern era, frequent maintenance of existing infrastructure, especially roads is of prime importance. Microsurfacing is a preventive maintenance technique (preventative maintenance strategy aims at producing the most cost-effective improvements in pavement quality and life) involving three to six millimeter sized bitumen aggregate treated with a special emulsion. The layer is neatly laid down on road section requiring maintenance. This paper aims at focusing on the contributions made by researchers on Microsurfacing as a tool for pavement maintenance and repair. Although the technique is finding its place in Indian sub-continents little late, but nevertheless it is universally considered as an inevitable tool as far as preventive pavement maintenance is concerned and should be used to extend life of the underlying pavement.

Evaluation for Microsurfacing as Pavement Preservation Treatment

Journal of Materials in Civil Engineering, 2013

State highway agencies are facing immense pressure to maintain roads at acceptable levels for drivers amidst challenging financial and economic situations. Pavement preservation has been sought as a potential alternative for managing the pavement assets. This paper aims to present the functional and structural benefits of the Ultrathin Bonded Wearing Course (UTBWC) applications as a pavement preservation strategy on highway sections in Indiana. To achieve this goal, comprehensive monitoring and data analysis were performed using the Pavement Condition Rating (PCR), Structural Number (SN), and International Roughness Index (IRI) for in situ performance evaluation on UTBWC and the four control sections . The cost study indicated that UTBWC would be deemed cost-effective if it could provide more than 3.6 years of service life, and resurfacing would be deemed cost-effective if it could provide more than 3 years of service life. The study results demonstrate that UTBWC is not as cost effective as resurfacing; however UTBWC can still address pavement distresses and can extend pavement life in general.

BITUMEN-EMULSION BASED ROAD CONSTRUCTION IN THE ILO LOCAL RESOURCES-BASED ROAD WORKS PROJECT

BITUMEN-EMULSION BASED ROAD CONSTRUCTION IN THE ILO LOCAL RESOURCES-BASED ROAD WORKS PROJECT, 2008

The project currently completed a demonstration road rehabilitation by using emulsion bitumen instead of hot bitumen for road surfacing. A road in Pidie district has been selected for the demonstration work namely “Kuta Baru- Krueng Blang“. Two sealing options have been demonstrated on the road section length of 2.1 km are: • Modified OTTA penetration seal • Cold mix asphalt Resulting from the demonstration work indicated that it is feasible to construct district road by using road surfacing design a modified “Otta” penetration seal and an asphalt cold mix sealing options in Aceh through Intensive Employment Approach. In addition, the Modified Otta penetration seal and asphalt cold mix seal, two other road sealing options have been demonstrated on a short section of the road. The two additional sealings are DBST (Double Bituminous Surface Treatment) and Penetration Macadam by using emulsion bitumen as the binder. The intension to trial the other two sealing options was, crushed aggregates for these sealing options can easily be found in Aceh especially currently the size of crushed aggregate is commonly produced by most of the stone crushers in Aceh. Aside from the sealing work, the demonstration work has included road base course activity by using a steel shutter system for spreading road base course material prior commencing of sealing work. The steel shutter system is being introduced by the ILO project in South Africa. The project has also tested ETB (Emulsion Treated Base) for a short section of the road on a class “A” base course material. The requirement of the demonstration was to investigate the feasibility of the construction method of the emulsion bitumen road work, the technology associated with the sealing options if it suits the condition of Aceh and Nias. From the demonstration work, it was observed that: • Modified Otta Penetration sealing option by using emulsion bitumen as a binder is suitable for application by labour with support by using light plant and a more labour friendly method. The method can be applied by a motorized hand sprayer and simple local available hand tools and material (aggregates) produced. • Cold mix asphalt sealing option has been assessed during the demonstration that, it is feasible by using bitumen emulsion as a binder as an alternative to the seal. The product of the asphalt mixing can be done manually and/or by using a concrete mixer for the mixing of asphalt cold mix on site. • ETB road base course has been rested. As a result of the testing, CBR of the completed ETB was higher than 100% as well and the compaction density of the ETB was higher than 100%. Mixing of the aggregate, emulsion bitumen and cement can be done by using concrete mixture manually on site. • Road base course activity by using a steel shutter system has been demonstrated and implemented for the entire length of the demonstration road. Class “A” crushed aggregate has been used for the road base. It was assessed that by using the class “A” material to produce 10 cm compacted thickness needs 14cm loss thickness of the class “A” material. Compaction density can be achieved greater than 98% and CBR greater than 80%. As a result of the demonstration, there were some problems faced during the demonstration work especially the availability of crushed aggregates for the sealing work. A local stone crusher has produced crushed aggregates for the sealing work. Size of the crushed aggregates was used for the demonstration work is not commonly used in the district for other road construction project, so there was some difficulty to get the right quality of production of aggregate for the demonstration work as well as daily production of the required quantity of the crushed aggregates was sometimes less than required, so the progress of the work was slower than expected.

IRJET- Micro surfacing: A Proactive Maintenance for Rigid Pavement

IRJET, 2020

India resides in the tropical region where the climatic conditions vary, day to day, concrete is the material which due to variation in the temperature develops high stresses and deforms. In this research work the various causes of distresses occurred on rigid pavements are analyzed. Micro Surfacing is an eco-friendly surface treatment, applied over an existing road which is structurally sound. It is a solution for resurfacing as a wearing course. The material and laboratory mix design is developed for micro surfacing on rigid pavement to Increase the service life of pavement. The average life of microsurfacing is 4 year as per IRC: SP: 81:2008.

Rural Road Preventive Maintenance with Microsurfacing

Road transport is considered to be one of the cost-effective and preferred modes of transport for both freight and passengers. India has an extensive road network of 4.24 million km, the second largest in the world . Rural roads consist over 85 percent of the road network and keeping them in serviceable condition is important to the agricultural growth and affording means of access to millions of rural people to social facilities viz. medical, education as also to market . Rural road funding is inadequate to maintain current road condition under traditional maintenance and rehabilitation policies. With the preventive maintenance program the pavement can be maintain in a cost effective manner with less total cost and better pavement quality. Microsurfacing is widely used for both pavement preservation and preventive maintenance. Microsurfacing is environmental friendly as it reduces the greenhouse gas and fuel consummation. This paper describes the construction process of wearing course of pavement through Microsurfacing which reduces the both direct and indirect cost and experience of Microsurfacing at IIT-Guwahati approaching road.

Performance-Related Specifications for Asphalt Emulsions Used in Microsurfacing Treatments

Transportation Research Record: Journal of the Transportation Research Board, 2017

This paper details the development of a framework for emulsion performance grade (EPG) specifications for microsurfacings. Microsurfacings are preservation surface treatments designed to improve the condition of the pavement surface while mitigating deterioration of the overall pavement structure. Asphalt emulsions used in microsurfacings are often selected on the basis of factors that are not necessarily related to performance. Rutting and thermal cracking have been identified as the most critical microsurfacing distresses related to binder performance. In the assessment of fresh emulsion properties, storage stability and mixability have been determined to be the most critical constructability concerns. For this study, binder and mixture test methods were identified to reflect the failure mechanisms for each critical distress type. The two emulsion residue test methods that were identified to capture microsurfacing performance were ( a) the multiple stress creep and recovery test f...

An In-Depth Evaluation of Micro-Surfacing Treatment

Civil Engineering Journal, 2018

Micro-surfacing since its formal introduction in 1980 has proved to be the number one treatment option for maintenance and preservation of pavements. This paper reviews the design and equipment practice, construction process, benefits, limitations and worldwide state of the practice of micro-surfacing. Two implemented project examples are also included to corroborate why micro-surfacing is a better preservation maintenance strategy. The general consensus from the literature is that micro-surfacing is a cost effective and eco-friendly treatment but more research needs to be done to validate and quantify the less environmental impacts and energy usage it offers unlike other treatments. Suggestions like standardization of the mixture design and whether rolling of the micro-surfacing surface adds value are future research topics that will greatly improve its effectiveness. It is my hope that through this review, more developing countries under strict budgetary constraints can take up this practice and enjoy the many benefits that micro-surfacing offers.