RESEARCH CONCERNING THE RESISTANCE OF ROAD SURFACES MADE OF A POROUS ASPHALT MIXTURE INCLUDING COARSE AGGREGATE WITH A SMALL PARTICLE SIZE

Generally, various kinds of cracks are the main type of distresses during the service period of asphalt pavements. To save maintenance costs and improve the crack resistance of asphalt pavements effectively, this paper presents a unique design method for the material composition of small particle-size (SPS) asphalt mixture for controlling cracks in asphalt pavement. First, Stone Mastic Asphalt (SMA)-II was designed as a basic gradation according to the A.N. Talbot curve and SMA-II-1, SMA-II-2 and SMA-II-3 were designed according to the Superpave mix design method, the Bailey method and the Particle interference theory, respectively. Second, based on Marshall test results, the optimal fiber content and optimal asphalt content of three gradations were determined. Then, the influence of the passing rate of 1.18-mm sieve and 0.075-mm sieve on the air voids of SMA-II and the influence of the filler-asphalt ratio on the performance of SMA-II were investigated, and an appropriate range of filler-asphalt ratio was obtained. Finally, a high-temperature performance test, a water stability test, and a skid resistance test demonstrate that the overall performance of SMA-II can satisfy the specifications. A low-temperature bend test and analysis of bending strain energy density show that SMA-II with a crumb rubber modifier and a polymer fiber has better crack resistance performance than SMA-I (SBS-modified mixture). Life-cycle cost analysis shows the economic advantage of SPS asphalt thin overlays over traditional AC-13 thin overlays.

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Faculty Opinions recommendation of A small particle size diet reduces upper gastrointestinal symptoms in patients with diabetic gastroparesis: a randomized controlled trial.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.718234590.793489907 ◽

2014 ◽

Author(s):

Klaus Bielefeldt

Keyword(s):

Particle Size ◽

Randomized Controlled Trial ◽

Small Particle ◽

Controlled Trial ◽

Gastrointestinal Symptoms ◽

Diabetic Gastroparesis ◽

Small Particle Size ◽

Randomized Controlled ◽

Upper Gastrointestinal Symptoms ◽

Upper Gastrointestinal

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Dose schedule of Rasa Aushadhis

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v1i2.3673 ◽

2016 ◽

Vol 1 (2) ◽

Author(s):

Dr. Jambla Neha ◽

Saroch Vikas ◽

Johar Smita

Keyword(s):

Particle Size ◽

Oral Mucosa ◽

Small Particle ◽

Dose Schedule ◽

The Body ◽

Small Particle Size ◽

Inherent Property ◽

Ayurvedic Drugs ◽

Modern Era

Rasashastra deals with the Rasa Aushadhis, the drugs of metallic and mineral origin. Mercury is used in most of the Rasaaushadhis. The toxicity of Mineral and metallic preparations are reduced to such an extent by various procedures of Shodhana, Marana etc. that Mercury converts its inherent property of toxicity into medicinal property. Rasa Aushadhis works quickly on the body because due to their small particle size, their absorption starts from the oral mucosa itself. The action of drugs depends largely upon the Anupana i.e. the vehicle for the drug. Rasacharayas have mentioned various Rasa preparations like Bhasmas, Parpati, Pottali, Manduras, Karpooras etc. along with their doses, dose schedule and Anupana / Sahapana etc. The principles of Rasaaushadhis when correlated in modern era are found to be scientifically accurate. We may say that Rasacharyas had already mastered the science of nanotechnology, purification, action of metabolic catalysts, biotransformation and preservation of medicines. The Ayurvedic drugs can be harmful for our body when not administered in proper dosage as per mentioned in classic literatures.

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