Topcrete RD dense blocks
Topcrete RD blocks are purpose designed dense blocks for the construction of solid separating walls in dwellings conforming to Robust Detail E-WM-9.
Topcrete RD benefits
- Can be used in separating walls without the need to undertake routine pre-completion testingˆ
- Unique end grooves aid site identification.
- Quicker and cheaper to build than cavity separating walls.
- Strong enough for most low and high rise building requirements
ˆ Pre-completion testing not required provided building plots are pre-registered with Robust Details Ltd.
Topcrete RD specification
- Mean compressive strength: 7.3N/mm²
- Dry density: 1900 to 2000kg/m³
- Unit weight: 18.5 kg
- Laid weight excluding finishes: 416kg/m²
Unit and laid weights are approximate and calculated based on the specified dry density with 3% moisture content by volume added to provide equilibrium weights.
Topcrete RD is manufactured to comply with EN 771-3, tolerance category D1, and conforms to Category 1 manufacturing control as specified in BS 5628-1.
Topcrete RD working dimensions 
Topcrete RD blocks are 440mm long x 215mm wide x 100mm high. They should be used laid flat to construct a 215mm width wall.
Topcrete RD quantities
The product is sold as a 215mm width block on a square metre basis (m²).
There are 20 blocks supplied per m² of wall.
Topcrete RD environmental performance
Topcrete RD is manufactured under an ISO 14001 compliant Environmental Management System that is independently certified by BSI.
Find out more about Topcrete RD
Topblock Hemelite and Topcrete Aggregate Blocks Brochure (pdf, 1596kb)
