RELATIVE DENSITY & WATER ABSORPTION BS 812 : PART 2 : 1975
Method 5.4 / 5.5*

Scheme Lab Ref
Client Ref. Job Ref
Supplier    Source
Location Date
Material Type Date Format
Material Name Specification
  Aggregate Type


RDA Test Method
Test Data Test 1 Test 2
Water Temperature at the Start of the Test (deg C)
Tray No.
Jar No.
Date/Time in Soak
Date/Time Removed from Soak (24 hr +/- 1/2 hr)
Max/Min Temperature during Soaking (20 +/- 5 deg C)
Test Water temperature (deg C) 
Weight of Jar + Water + Sample (B) (g)  
Weight of Jar + Water (C) (g)
B - C (g)
Test water Temperature (deg C) (Max Change 2 deg C)
Weight of Sample SSD condition (A) (g)
Date/Time in Oven (100 to 110 deg C)
Date/Time out Oven (24 +/- 1/2 hr)
Tin No
Tin Weight (g)
Tin + Oven Dry Sample (g)
Weight of Sample Oven Dry Condition (D) (g)
           
Relative Density Test 1 Test 2 Averages
  To Nearest 0.1%
Oven Dried = D / A - (B - C) 
SSD = A / A - (B - C) 
Apparent  = D / D - (B - C)
                 
Water Absorption   To Nearest 0.1%
Percentage =  100(A - D) / D
                 
Comments
   
Tested By Date Checked By