Technical Standards

Technical Standards

Please note that all technical information is provided for information purposes only and it is explicitly the responsibility of the client to ensure that they order the correct product that is fit for purpose.

Aggregate Standards

Aggregates for Bituminous Materials BS EN 13043 Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas
PD 6682-2 Guidance on the use of BS EN 13043
Aggregates for Concrete BS EN 12620 Aggregates for concrete
PD 6682-1 Guidance on the use of BS EN 12620
Aggregates for Drainage BS EN 13242 Aggregates for unbound and hydraulically bound materials for use in civil engineering works and road construction
BS EN 13285 Unbound mixtures- Specification
PD 6682-6 Guidance on the use of BS EN 13242
Armourstone BS EN 13383 Armourstone
PD 6682-7 Guidance on the use of BS EN 13383
Subbase BS EN 13242 Aggregates for unbound and hydraulically bound materials for use in civil engineering works and road construction
BS EN 13285 Unbound mixtures- Specification
PD 6882-6 Guidance on the use of BS EN 13242

Specification for Highway Works Volume 1 – Series 500 Drainage

Table 5/3 Coarse Aggregate for pipe bedding, haunching and surround
Nominal pipe diameter mm Class of bedding Aggregate Size Graded mm Aggregate Single Size mm
140mm S,B,F,N,T 4/10
140400mm S,B,F,N,T 2/14, 4/20 4/10, 6.3/14, 10/20
400MM S,B,F,N,T 2/14, 4/20, 4/40 4/10, 6.3/14, 10,20, 20/40

 

Table 5/4 Fine and all in Aggregate for pipe bedding, haunching and surround 
Nominal pipe diameter mm Class of bedding Aggregate size mm – Fine Aggregate size mm – All in
140mm N,T 0/1, 0/2, 0/4, 0/6 0/10
140400mm N,T 0/1, 0/2, 0/4, 0/6 0/10, 0/20
400mm N,T 0/1, 0/2, 0/4, 0/6 0/10, 0/20, 0/40

 

Table 5/5 Requirements for Filter drain material 
Type A Type B Type C
0/20 20/40 Appendix 5/1 contract document
Concrete 
Type A Bed to drains Type A. Foundations, channels and benching to chambers ST4
Type Z Bed, haunch and surround to drains other than Type A.  Surrounds to chambers and gullies ST2
Class 1,2,3 general fill materials to series 600 0/20

Specification for Highway Works Volume 1 – Series 600 Earthworks

Table 6/1 Acceptable Earthworks Materials – Gradings to table 6/2 & 6/5 as appropriate 
Class Typical Use Description Suitable Product STR
1A General Fill Well graded granular material Scalpings; 0/80mm crusher run; 0/125mm crusher run;  Recycled crusher runs
1B General Fill Uniformly graded granular material Modified Type 1; 75-40mm
1C General Fill Coarse graded granular material <500mm selected as dug; primary stock; aggregates
2 General Fill Cohesive Subsoil from stripping
6A Below Water Well graded granular material <500mm selected as dug; 6mm/whin sand 1:1 blend
6B Starter Layer Selected coarse graded granular small armour <500mm
6C Starter Layer Selected uniformly graded 75-40mm
6E Cement stabilised capping Selected granular material 0/20mm scalpings STR
6F3 Capping Selected granular material Planings; recycled crusher run >50% planings
6F4 Capping Selected granular – fine graded Type 1
6F5 Capping Selected granular – coarse graded 0/80mm crusher run; recycled crusher run
6G Gabion Stone Selected granular material Selected primary stock
6H Drainage layer reinforced earth structures Selected granular material 6mm/whin sand 70:30 blend STR
6I Fill to reinforced earth structures Well graded granular 20mm scalpings STR
6J Fill to reinforced earth structures Uniformly graded granular Type 1 STR
6K Lower bedding forcorrugated steel structures Granular material 20mm scalpings STR
6L Upper bedding for corrugated steel structures Uniformly graded granular material 6mm/whin sand 70:30 blend STR
6M Surround to corrugated steel buried structures Selected granular material 20mm scalpings; Type 1; 0/80mm Crusher run STR
6N Fill to structures Selected granular fill 20mm scalpings; 0/80mm crusher run STR
6P Fill to structures Selected granular fill 20mm scalpings; Type 1; 0/80mm crusher run STR

 

STR – special testing required to supplement grading and annual physical tests.

UK Water Industry Requirements

Table A.1 Processed granular bedding material for RIGID pipes 
Nominal Pipe Diameter mm Nominal maximum particle size mm Class of bedding Specified Material
100mm 10 S,B,F 4/10
N 0/4
100150 15 S,B,F 4/10, 6.3/14
N 0/4
150300 20 S,B,F 4/10, 6.3/14, 10/20, 4/20
N 04/, 0/20
300550 20 S,B,F 6.3/14, 10/20, 4/20
N 0/4, 0/20
550 40 S,B,F 6.3/14, 10/20, 20/40, 4/20
N 0/4, 0/20
Table A.2 Processed granular bedding and sidefill material for FLEXIBLE pipes 
Nominal Pipe Diameter mm Nominal maximum particle size mm Specified Material
100mm 10 4/10
100150 15 4/10, 6.3/14
150300 20 4/10, 6.3/14, 10/20, 4/20
300550 20 6.3/14, 10/20, 4/20
550 40 6.3/14, 10/20, 20/40, 4/20

 

Hillhouse Group

Hillhouse Group