Hemelite and Topcrete > lightweight and dense aggregate blocks from Tarmac Topblock size="-1">

Sitework27 Design25 Safe handling25 Movement control25 Mortar25 Wall ties26 Specification26 Walls below DPC18 Beam and block floors 18 Internal walls 19 Separating walls 19 External walls22 Thermal Insulation23 > Introduction3Product Selector 4 Hemelite Properties5 Hemelite Standard6 Hemelite Paint Quality7 Hemelite Foundation8 Hemelite Reveal9 Hemelite Coursing10 Topcrete Properties11 Topcrete Standard12 Topcrete Paint Quality13 Topcrete Foundation14 Topcrete RPW15 Topcrete Reveal16 Topcrete Coursing17Application18 > Choice Quality products Tarmac Topblock offers a complete range ofaircrete,...

Continuous productdevelopment has led to an extensive range of Hemelite lightweight and Topcrete dense aggregate blocks, which are supplied from a network of production units located throughout the country. Hemelite lightweight aggregateblocks are suitable for use in walls above and below ground and in block and beam floors. They have a proven high level of technical performance. Topcrete dense aggregate blocksare extremely durable and robust and have excellent loadbearing and sound insulation properties. Recent developments have seen the introduction of Multicore and Midi blocks as well as RPW...

For general use in walls aboveand below ground and in beam and block floors. They are ideal for finishing with render, cladding, plaster or drylining. Close textured blocks ideallysuited for walls in commercial and leisure buildings which are to receive direct decoration. The colour and texture of blocks may differ according to factory of origin. Samples are available on request. > Standard Paint Quality > Solid, cellular or hollow3.6 N/mm > 2 13601400Solid 7.3 N/mm > 2 14501400Solid 10.4 N/mm > 2 15201500Solid Ultra 3.6 & 7.3 N/mm > 2 -1050 > Solid, cellular or hollow 3.6 N/mm > 2 0.450.46Solid...

Face size 440 x 215mmBlockwidth(mm)7590100140150190200215 Face size 440 x 215mmBlockwidth(mm)7590100140150190200215 > 2 Notes --11.015.0-19.0-- > Unit weights, which are given for design purposes, areapproximate only and based on 3% moisture contentTolerance to BS EN 771-3, Tolerance Category D1 --121165-210-- > 2 ---15.0-19.0-- ---159-202-- > Note Laid weights are approximate and taken at 3% moisture content Fire resistance, no finish (hrs)Sound reduction, (R > 2 w dB)Block thermal resistance (m K/W)Single leaf wallNon-LoadbearingLightweightDrylining3.6N/mm > 2 7.3N/mm > 2 10.4N/mm > 2 loadbearingplaster...

Foundation is producedspecifically for use below DPC in solid walls. It replaces the inner and outer leaf, wall ties and concrete cavity fill associated with traditional construction methods. This means that construction time may be halved compared to cavity walling and that the wall becomes stable soon after laying, eliminating the risk of collapsed cavities.They are formed with recessedgrooves in each short edge to facilitate lifting and are available in sizes of 255 x 290 x 140mm or 255 x 300 x 140mm. For estimating purposes the following number of blocks are requiredper m > 2 of laid wall,...

L-shaped blocks close the cavityat openings and eliminate cutting and wastage of full sized blocks. They maintain a strong masonry bond as well as providing a good bearing for beams and lintels. The Reveal block return dimension is 65mm: an allowance should be made for the DPC and any insulation required to limit thermal bridging. > Block width(mm)100 x 65x cavity return (mm) > 3.6N/mm > 2 8.47.3N/mm > 2 8.9 > Compressive strength to BS EN 771-3 (N/mm 2 ). Full and half length Reveal blocks Typical application (purchased as a pair) > Brickworkouter leaf HemeliteReveal blockDPCInsulation 100mm...

Coursing bricks are designed for use with the range of Hemelite blocks. Typical application > Coursing bricks should be used for general coursing work, in-filling small areas of wall such as between timber floor or roof members as well as closing cavities at eaves, reveals and sills. Their use can eliminate cutting and wastage. > Brick size 215 x 100 x 65mm > 65mm215mm100mm Compressive strength to BS EN 771-3 (N/mm > 2 )3.6, 7.3Equivalent compressive strength to BS 6073 (N/mm > 2 )3.5, 7.0Nominal dry density (kg/m > 3 )1400Unit weight (kg)2.0 > Note Unit weight is approximate and taken at 3%...

For general use in walls aboveand below ground and in beam and block floors. They offer high loadbearing potential, excellent Close textured blocks ideallysuited for walls in commercial and leisure buildings which are to receive direct decoration. The colour and texture of blocks may differ according to factory of origin. Samples are available on request. sound insulation and are extremely robust and durable. They are ideal for finishing with render, cladding, plaster or drylining. Material properties > Standard Paint Quality Compressive strength to BS EN 771-3 (N/mm > 2 ) > Solid blocks7.3,...

Foundation blocks are producedspecifically for use below DPC in solid walls. They replace the inner and outer leaf, wall ties and concrete cavity fill associated with traditional construction methods. This means that construction time may be halved compared to cavity walling and that the wall becomes stable soon after laying, eliminating the risk of collapsed cavities.They are formed with recessedgrooves in each short edge to facilitate lifting and measure 275 x 300 x 140mm. For estimating purposes the following numbers of blocks are required per m > 2 of laid wall,based on 10mm mortar joints:...

RPW (Residential Party Wall)blocks are designed for the construction of solid masonry separating walls in residential buildings such as hotels and student accommodation.They offer an alternative slimline solutionђ to established sizes For estimating purposes the following number of blocks are required per m > 2 of laid wall,based on 10mm mortar joints: 190mm width 22.2 blocks. > The design and construction of walls should be in accordance with BS 5628-1&3. of cavity and solid separating walls. > RPW blocks are 290mm long x 190mm width x 140mm high. They should be used to construct a 190mm thick...