منابع مشابه
A Preliminary Assessment of Rock Slope Stability in Tropical Climates: A Case Study at Lafarge Quarry, Perak, Malaysia
The stability analysis of rock slopes is a complex task for the geotechnical engineers due to the complex nature of the rock mass in a tropical climate that often has discontinuities in several forms, and consequently, in several types of slope failures. In this work, a rock mass classification scheme is followed in a tropical environment using the Rock Mass Rating (RMR) and Geological St...
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Bituminous mix design is a delicate balancing act among the proportions of various aggregate sizes and bitumen content. For a given aggregate gradation, the optimum bitumen content is estimated by satisfying a number of mix design parameters. This article briefly discusses the current approaches in bituminous mix design and singles out the issues involved.
متن کاملPrize quarry
dogfish and a total allowable catch of zero for 2010. Scientists had recommended a zero catch for this year as studies suggest the northeast Atlantic population is on the verge of collapse. Catches for cod outside the North Sea, hake, monkfish, sole and whiting have also been agreed at levels higher than those recommended by EU advisors. The Bay of Biscay anchovy fishery is to remain closed but...
متن کاملRecycling of Bituminous Pavements
IN T R O D U C T IO N The major material utilized in the construction of the roads, streets and highways of this country is asphalt. Of the nation’s 3.84 million miles of roads, 1.86 million are paved, hard-surfaced structures. 1.74 million or 94% of these paved roads are constructed of asphalt (Fig. 1). Likewise, within the state of Indiana, 83% or about 9300 miles of the 11,200 miles under th...
متن کاملBituminous pavement recycling
The bituminous pavement rehabilitation alternatives are mainly overlaying, recycling and reconstruction. In the recycling process the material from deteriorated pavement, known as reclaimed asphalt pavement (RAP), is partially or fully reused in fresh construction. Some of the advantages associated with pavement recycling are (i) less user delay (ii) conservation of energy (iii) preservation of...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1911
ISSN: 0036-8733
DOI: 10.1038/scientificamerican05131911-296asupp