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Bitumen penetration test

OBJECTIVES           i.             To determine the consistency of bituminous material.       ii.             To assess the suitability of bitumen for use under different climatic conditions and various types of construction. APPARATUS REQUIRED         i.          A penetrometer consisting of a needle assembly with total weight of 100 gm and device for releasing and locking needle in any position.       ii.          A graduated dial gauge to read the penetration value.     iii.          Penetration values can be read with this dial up to 0.1mm.     iv.      ...
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Bagmati Irrigation Project

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Bagmati Irrigation Project .          Bagmati Irrigation Project (BIP): Established in June 2010        It came into normal operation from July 2013 . .           It has command area of 122000 Ha .(  Phase I : 68,000 Ha and Phase II: 54000 Ha)       Total design discharge= 10500 m3/sec which is a sum of design discharge 8000 m3/sec and       by pass channel discharge 2500 m3/sec .       Its canal design discharge is 34000 lt/sec.        Its   major source is Bagmati river.            The construction cost of this project is NRS 37,809,610.25 aided Saudi Development Fund.            Its annual operation and maintenance cost is 467,321,000 NRs. (Government, 2072 )              The barrage has total length of 403.50 m with a d...
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Ductility test of bitumen

OBJECTIVES         i.             To measure the ductility of a given sample of bitumen.       ii.             To determine the suitability of bitumen for its use in road construction. APPARATUS REQUIRED The apparatus for the standard ductility test as per IS 1208-1978 consists of followings:         i.             Briquette mould : It is made up of brass. Circular holes are provided at ends called clips to grip the fixed and movable ends of the testing machine. The mould when properly assembled form a briquette specimen of following dimensions: - Total length =75.5 ± 0.5 mm Distance between clips = 30.0 ± 0.3 mm Width at mount of slip = 20.0 ± 0.2 mm Width at minimum cross-section (Half way between clips)...
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Los Angeles Abrasion Test

OBJECTIVES         i.             To determine the Los Angeles abrasion value.       ii.             To find out the suitability of aggregates for its use in road construction. APPARATUS REQUIRED As per IS 2386 (part IV)-1963 the apparatus required are: Los Angeles Machine: It consists of hollow steel cylinder, closed at both the ends having internal diameter 700 mm and length 500 mm and capable of rotating about its horizontal axis. A removable cover for introducing sample is provided which when clamped is dust tight. A removable steel shaft projecting radially 88 mm into cylinder and extending full length (i.e. 500 mm) is mounted firmly on the interior of cylinder. The shelf is placed at a distance 1250 mm minimum from the opening in the direction of ...
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