Edenhall Technical Brochure online_Dec 2018

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BRICK TECHNICAL BULLETIN ENVIRONMENTAL CHARACTERISTICS BTB 3 ENVIRONMENTAL PERFORMANCE SUMMARY • Edenhall bricks can be considered as a net absorber of CO 2 due to the continuous carbonation of concrete, or to give it a more accurate name, recarbonation, which is the reaction between carbon dioxide gas (CO 2 ) in the atmosphere, weak atmospheric acid, and calcium oxide. Calcium oxide is an alkaline product of cement which reacts with CO 2 to reform calcium carbonate (CaCO 3 ) as concrete ages. • Concrete Bricks are 100% recyclable and suitable for, and indeed are reused as crushed aggregates. • The aggregates used in the manufacturing process utilise materials that are often classed as a waste product of quarrying, being a by-product of manufacturing primary clean graded aggregates. • Most aggregates used are from sources local to Edenhall’s plants and brick delivery points are typically within 100 miles, therefore reducing the environmental impact and associated carbon footprint. • Edenhall bricks are manufactured at a number of locations throughout the UK and have reduced environmental impacts compared with imported products, eg. imported bricks from Europe, which may travel 500 miles from factory to site and generate nearly 700kg/CO 2 per delivery, equivalent to 24kg/CO 2 /Tonne. This compares with the more local deliveries from Edenhall of 8kg/CO 2 /Tonne, approximately one third of that of clay imports. • The high energy firing of kilns in clay production processes is not required for the curing of Edenhall bricks. We simply use the natural exothermic reaction of the cement with little additional energy input. This means minimal additional natural resources are consumed and overall emissions are reduced. • Cements used in the production of Edenhall’s bricks are supplemented by replacement materials such as blast furnace slag. Additionally Edenhall supports UK cement production facilities rather than the high carbon footprint associated with overseas and imported products. CARBON FOOTPRINT OF EDENHALL BRICKS The embodied CO 2 of dense concrete masonry products is estimated as 84kg/CO 2 /Tonne*. This is assumed to be an “ex works” figure which takes into account the manufacture of the product itself, but not the transportation to site. On a typical return journey of 160 miles a 44 tonne vehicle carrying 28 tonnes will produce about 8kg/CO 2 /Tonne**. Hence the average total embodied carbon content of Edenhall bricks is estimated at 92kg/CO 2 /Tonne manufactured and delivered to site. By comparison clay bricks have an embodied carbon content of 244kg/CO 2 /Tonne from quarry to site***. Taking into account a typical end of terrace house of 31m 2 floor area using 3840 bricks and assuming 20% openings, the embodied carbon of a clay brick is 2202kg/CO 2 /Tonne which over a design life of 100 years equates to 22kg/CO 2 per year. The equivalent figure for a concrete brick is 1095kg/CO 2 /Tonne or 11kg/CO 2 per year over the same design life. Therefore an Edenhall brick has 50% of the embodied carbon content of a clay brick thus halving the overall impact. The recarbonation or CO 2 absorption characteristics of Edenhall bricks, as described above, can also offset any embodied carbon over the life of a building. In addition, the slightly heavier mass of a concrete brick can contribute to improved sound reduction from external sources and can also add to the thermal mass of a building. Finally, with their low cement content, locally sourced aggregates, use of cement replacements and natural exothermic curing regimes, along with local production factories which minimise haulage distances to site, Edenhall bricks are particularly environmentally friendly. Copies of Edenhall’s Environmental Policy, CPS4 and Sustainable Development Policy, CPS6 are available to download from the website – www.edenhall.co.uk
BTB 3 ENERGY CONSUMPTION TO PRODUCE EDENHALL BRICKS Apart from power used by production equipment, little additional energy is required to manufacture and cure the bricks. Typically
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TECHNICAL MANUAL FOR BRICKS edenhal
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edenhall.co.uk CONTENTS 1. INTRODUC
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edenhall.co.uk 10. APPENDICES Appen
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Page 9 and 10: edenhall.co.uk 2. ABOUT EDENHALL Ed
Page 11 and 12: edenhall.co.uk • The cement conte
Page 15 and 16: edenhall.co.uk 4.4 Engineering Qual
Page 17 and 18: edenhall.co.uk 5.4 Product Selector
Page 21 and 22: edenhall.co.uk 6.4 Brick Specificat
Page 25 and 26: edenhall.co.uk 7. PERFORMANCE, DESI
Page 27 and 28: edenhall.co.uk 7.2 Efflorescence &
Page 29 and 30: edenhall.co.uk 7.6 Environmental Pe
Page 33 and 34: edenhall.co.uk 7.12 Product Compari
Page 35 and 36: edenhall.co.uk 7.13 Mortar A 1:1:6
Page 37 and 38: edenhall.co.uk 9. INDEX Page Number
Page 39: edenhall.co.uk 39
Page 42 and 43: 42
Page 44 and 45: BRICK TECHNICAL DATA SHEET ENGINEER
Page 46 and 47: BTDS 4 BRICK TECHNICAL DATA SHEET D
Page 48 and 49: BTDS 5 Notes: S: Specify Dimension
Page 50 and 51: 44
Page 52 and 53: BTB 1 CAVITIES Both leaves of a cav
Page 54 and 55: BTB 1 The most common causes are:
Page 56 and 57: BTB 2 Under the more recent BS EN 7
Page 60 and 61: BRICK TECHNICAL BULLETIN MORTARS FO
Page 62 and 63: BTB 4 PRESCRIBED MORTARS (BY VOLUME
Page 64 and 65: BRICK TECHNICAL BULLETIN MOVEMENT C
Page 66 and 67: BTB 5 Dissimilar Materials: In cert
Page 68 and 69: BTB 5 Alternative position Where po
Page 70 and 71: BTB 5 The length of a panel can als
Page 72 and 73: BTB 5 BED JOINT REINFORCEMENT Figur
Page 74 and 75: BRICK TECHNICAL BULLETIN EFFLORESCE
Page 76 and 77: BTB 8 Removal of Mortar Stains with
Page 78 and 79: BTB 8 Pressure Water Cleaning Press
Page 80 and 81: BRICK TECHNICAL BULLETIN RESISTANCE
Page 82 and 83: BRICK TECHNICAL BULLETIN COURSING B
Page 84 and 85: BRICK TECHNICAL BULLETIN CONCRETE E
Page 86 and 87: BTB 11 ADVANTAGES OF CONCRETE EQS
Page 88 and 89: BRICK TECHNICAL BULLETIN FIRE RESIS
Page 90 and 91: BRICK TECHNICAL BULLETIN THERMAL IN
Page 93 and 94: HSDS 1 HEALTH & SAFETY DATA SHEET P
Page 95 and 96: HSDS 2 HEALTH & SAFETY DATA SHEET S
Page 97 and 98: edenhall.co.uk QUESTIONS & ANSWERS
Page 99 and 100: EDENHALL BRICKS QUESTIONS & ANSWERS
Page 101 and 102: Lime based mortars are more flexibl
Page 103 and 104: 25. Are Edenhall bricks resistant t
Page 105 and 106: 38. Can I render or plaster on top
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Edenhall Technical Brochure online_Dec 2018

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