Laboratory Base Pavement Surface Analysis Based on Materials Characterization
Journal Title: International journal of Emerging Trends in Science and Technology - Year 2014, Vol 1, Issue 7
Abstract
Skid resistance is a condition parameter that characterizes the contribution that a road surface makes to the level of friction available at the contact patch between a road surface and vehicle tire during acceleration, breaking and cornering manoeuvres. The surface texture and the surface course properties affect the roughness (microtexture, macrotexture and megatexture) which is influenced by traffic, weather and the environment. Some statistics data indicate that the number of accidents increases by up to two folds during rainy conditions. The PSV value of the aggregates used is a significant but not the sole influencing factor. The Polished Stone Value is determined under standard laboratory conditions and indicates to which extent an aggregate is resistant to polishing under the action of traffic. Skid resistance changes over time. Typically it increases in the first two years following construction as the roadway is worn away by traffic and rough aggregate surfaces become exposed, and then decreases over the remaining pavement life as aggregates become more polished. In the present study, skid resistance and aggregate polishing value were conducted under varying bitumen content and using fillers materials like cement, fly ash. Texture depth is also a direct measure of area of contacts between tire and HMA surface so it also has the direct effect on pavement surface skidding. Portable pendulum type skid resistance tester (ASTM E303 - 93) was used to obtain the skid resistance value and the polishing stone value. This testing is conducted under critical condition like dry and wet surface. The Guide for pavement friction NCHRP document-108, ASTM is referring for the friction mechanism, pavementtire interaction, and machine recommendation. Main conclusion is the comparison of skid resistance value under several mixing condition.
Authors and Affiliations
Prabhakar Kumar
Keywords
Related Articles
- EP ID EP220994
- DOI -
- Views 101
- Downloads 0
Contours & Conflation Globalized Science & Religion: Research Study
From multiple perspectives, tools of importance like contours and conflation are singled out to take a survey and to conduct this research study assimilating the formidable impact due to the globalised Science & Religion...
LONELINESS IS A DISEASE
Feeling of loneliness and being alone were found to be independent predictors of motor decline in old age.[33.[34] It also leads to memory impairment and learning difficulties, and makes the person prone to Alzheimer's d...
Agricultural Water Saving Irrigation Controller
Agricultural irrigation uses considerable volumes of water, and is one of the largest groups of consumptive water uses in the state. The water efficiency practices listed in this fact sheet describe how to reduce excess...
Fuzzy Logic based Speed Control of an Induction Motor Using Indirect Vector Control Method
Efficiency optimization of motor drives is very important not only from the viewpoints of energy loss and hence cost saving, but also from the perspective of environmental pollution. Several efficiency optimization metho...
Radio Frequency Ablation - The Magic treatment for Osteoid Osteoma
Osteoid osteoma is a relatively common benign bone tumour, always small in size (less than 2 cm) and painful. It occurs mainly in children and young adults. The basic radiological element is a distinctive small rounded a...