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No Type Requirements Remarks

5
Particle Size and Shapes
Test : Determination of the Particle
Size and Sand Equivalent Value
Method : - BS 812 include: BS 410
In laboratory our Equipment:: Drying Oven 225 litre capacity. Fan-circulated. Supplied w/ 3 shelves.
Make: ELE - U.K.
 
 
 

Available at the laboratory's permanent facility
Amongst many of the applications to which aggregate lends itself is its use in economical concrete mixes, impervious, durable asphalts, macadam's and road bases. Particle size, shape and texture can have considerable effects on various design properties and are generally specified within certain limits. Rounded aggregate can lead to instability in a bituminous mixture yet be ideal as a concrete aggregate where good workability of the mix is essential for placing and compaction.

The test is used to determine the relative proportions of clay-like or plastic fines and dusts in aggregate used for construction purposes.

A comprehensive range of sieves, sieve shakers and ancillary equipment will be found in our laboratory.


6
Concrete Related
Test : Compressive Strength (cylindrical), dia. 100mm
Method : - BS1881: Part 120, 1983
Our Equipment: - Fully Automatic ADR-Auto 3000 BS Compression
Machine: - Make: ELE - U.K.
 

Available at the laboratory's permanent facility
(as above address). This method is used to determine the strength of concrete cores. "The results of the test are given as the measured core strength or the in-situ cube strength which are without allowance for the effect of curing history, or age, or degree of compaction. The relationship between core and cube strengths is complex and will vary with particular conditions", (BS1881: Part 120, 1983-Forward)
Test specimens to be delivered to the Laboratory- refer to NOTE 4

   
Test : Compressive Strength (cube)
Method : - BS1881: Part 116, 1983
Our Equipment: Fully Automatic ADR-Auto 3000 BS Compression
Machine: Make: ELE - U.K.
 
 
 

Available at the laboratory's permanent facility
(as above address)
Tests specimens to be delivered to the Laboratory- refer to NOTE 4
The readout unit has a built-in auto range system whereby the lower range is displayed in 0.1kN divisions up to 500 kN and on reaching this figure automatically changes to 1.0 kN divisions up to the maximum capacity.

   
Test : Schmidt Rebound Hammer,
Method : - BS1881: Part 202 - ConcreteTest Hammer guide
Hammer Type: Proceq N-34, Serial
No: 123883
 
 
 
 

Available at the laboratory's permanent facility
This method is used for the non-destructive measurement of the concrete/mortar compressive strength and the control of the uniform concrete quality (in-situ concrete and prefabricated structures) as well as for detecting weak spots.
the compressive strength (fc) is established by measuring the hardness (rebound value R) of the concrete surface and with the conversion curves.

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