Important new roofing guidance on building and installing spandrel panels which is endorsed by the NHBC is published this week by the Trussed Rafter Association (TRA). . 8.1 Internal services. Includes:An update on low or zero technologies (NHBC Standards Chapter 3.1) and two articles relating to faades. 0000056876 00000 n You can access the latest and past issues below. 0000035671 00000 n 0000025300 00000 n NHBC Standards 2021 deal with all elements of the house-building process, from foundations to roofs and finishing, the NHBC Standards BETA are divided into easily referenced sections. 0000032564 00000 n 0000032260 00000 n 0000044989 00000 n %PDF-1.4 % In a recent NHBC survey of 8,000 new homes . 0000035232 00000 n Knowlhill, Milton Keynes, Bucks, MK5 8FP. 0 . To help you interpret and apply the NHBC Standards we produce the following Technical Guidance Documents. NHBC TECHNICAL GUIDANCE - Spandrel Panels to Cold Roofs Click here to access the document in full. Expanding on and explaining the NHBC Standards. 0000037591 00000 n Is standard bracing acceptable? The guide is designed to reduce the risks, costs and waste from poor spandrel panel construction by housebuilders. 0000037523 00000 n 0000037513 00000 n Includes:Guarding openable windows with low cills; fire protection for proprietary dummy chimneys; weep holes in masonry walls. 0000030531 00000 n 0000017710 00000 n 0000001889 00000 n 0000014866 00000 n Copyright 2023. 0000011324 00000 n 0000008836 00000 n 00:00. Items to be taken into account include: fire resistance acoustic transfer structural stability. Includes:Articles onbasements and waterproofingand details of the updatedCode of Practice (CoP)on 'The Definition of Waste'. Find a member Members area. Key Success Factors In Bizcafe, 0000020964 00000 n 0000006790 00000 n Using spandrel panels as the gable construction in a timber frame building, or as a continuation of the internal skin of a masonry cavity wall, means the panels must be designed to resist wind loadings acting on the end walls as well as loads applied by the claddings. The TRA recently presented at the NHBC Building for Tomorrow roadshows, speaking to more than 700 housebuilders, addressing issues and providing guidance on spandrel panel design, manufacturing, handling and delivery, and installation. 0000005327 00000 n 0000005013 00000 n Is Stephanie Izard Still Married, NHBC TECHNICAL GUIDANCE - Spandrel Panels to Cold Roofs. 0000030146 00000 n 0000040977 00000 n 0000040582 00000 n a solar panel attached to an external wall. 2.1 The Standards and Technical Requirements 2.2 Models3 General 3.1 Concrete and its reinforcement 3.1.1 Compliance 3.1.2 Provision information 3.1.3 Storage materials 3.1.4 Site mixed concrete 3.1.5 Ready mixed concrete 3.1.6 Concrete specification 3.1.7 Admixtures 3.1.8. They provide an alternative to the inner leaf of an exterior masonry wall at the gable end of a building. Trussed roof manufacturers report increasing interest in these offsite components, especially from large and volume housebuilders building low-rise housing and apartments. in stewartstown, nh restaurants. 0000037140 00000 n 0000003462 00000 n 2.1 The Standards and Technical Requirements 2.2 Models3 General 3.1 Concrete and its reinforcement 3.1.1 Compliance 3.1.2 Provision information 3.1.3 Storage materials 3.1.4 Site mixed concrete 3.1.5 Ready mixed concrete 3.1.6 Concrete specification 3.1.7 Admixtures 3.1.8. NHBC is registered in England and Wales under We've produced a range of downloads with the latest technical advice on spandrel and gable panels. 0000041196 00000 n 0000042822 00000 n Standards 2018 - what's new? 0000030995 00000 n They each expand on and explain a specific part of the NHBC Standards. 0000036359 00000 n 0000035994 00000 n Wet mortar work essentials, Technical Training - Pitched roof coverings 3. In a recent NHBC survey of 8,000 new homes . Identification of 'coastal' sites Identification of more exposed 'coastal' sites is not as straightforward as it might seem. nhbc technical guidance spandrel panels to cold roofs 7.2/25 jan2018 (first issue) gable panel for masonry wall gable panel. 0000029841 00000 n 0000011184 00000 n Spandrel and Gable Panels. (0*9h72anqHQlQff9 xxt3308lsI= :bpW @]@Y#b ;@.\lW lXl#'0gpo``R! F9$2m,a|5@%C'g1D0`L`: ] @e@ n1 X22h1D 3Yh2P/PjT\ 1p/1x5@ J endstream endobj 716 0 obj <>/Filter/FlateDecode/Index[367 247]/Length 34/Size 614/Type/XRef/W[1 2 1]>>stream nhbc spandrel panel technical guidanceaurecon graduate program whirlpool. 0000043200 00000 n likely to be the most appropriate scheme, nhbc standards introducing chapter 5 4 waterproofing of basements and readers will be aware that in 2013 nhbc launched a basement campaign for technical advice and support call 01908 747384 or visit www nhbc co uk guidance and good practice guidance an industry perspective who should read this technical and April 22nd, 2019 - NHBC Standards 2013 NHBC accepts the use of Kooltherm K15 Rainscreen Insulation Board provided it is installed used and maintained in accordance with this Certificate in relation to NHBC Standards Chapter 6 1 External masonry walls and Chapter 6 9 Curtain walling and cladding Current NHBC guidance precludes the use of faade timber frame spandrel panel - horizontal 47x72 timber, studs typically @600c/c, one layer of 15mm fermacell on both sides (optional 38x89 studs with 18mm fermacell . 0000114617 00000 n TECHNICAL GUIDANCE SPANDREL PANELS TO COLD ROOFS . Items to be taken into account include: structural stability. 0000037977 00000 n 0000018237 00000 n The revised Chapter came into force for all new homes with foundations concreted on or after 1 January 2012. 0000047393 00000 n 0000034549 00000 n nhbc spandrel panel technical guidance. 0000039132 00000 n WARRANTY POSITION. )%-#+'ghdlbjfnaiemckgj 4h 'Fvz6%$-%i7=7;/C,S$&r[dmP 0000001705 00000 n 0000039438 00000 n page 1 of 9 TECHNICAL GUIDANCE SPANDREL PANELS TO COLD ROOFS 7.2 /25 January 2018 (First Issue) NHBC NHBC House, Davy Avenue, Knowlhill, Milton Keynes, Bucks MK5 8FP Tel: 0344 633 1000 Fax: 01908 747 255 www.nhbc.co.uk QUESTION ANSWER Spandrel panels are generally factory-made, transported to site in one or more sections, and craned into position on to timber framed or masonry support walls. Includes:Chapter 5.4 'Waterproofing of basements and other below ground structures' | Guidance and good practice - an industry perspective. We produce Technical Extra to provide you with detailed updates to NHBC Standards, Building Regulations compliance and current best practice guidance. New roofing guide to boost housebuilders use of offsite components. 0000037600 00000 n #D=1Hz}geYlMMM-cm(((vRh?> Sh.j9DCn@I3HQ gHP*)5#`'UFZ4y(["Na*S8TP%h (England) and 100mm thick TECHNICAL. By ticking this box, you agree to receive email communications from the TRA about latest news and events. 0000008572 00000 n 0000008491 00000 n this nhbc guidance document takes into account the significant quantity of data obtained to date from a range of bs8414 tests and subsequent desktop assessments of different combinations of combustible insulation and claddings and recommends a minimum specification which, if met or exceeded would be sufficient to meet nhbc standards and building News Make a product enquiry. 0000034166 00000 n The guide has been developed by the TRA in association with the NHBC and the Structural Timber Association (STA) and will receive further updates following the outcome of further fire testing, currently being undertaken with the STA. TECHNICAL GUIDANCE6XXX7..12//225 - 2015 - 5 - Nov 2017 2014 page 4 of 9 NHBC NHBC House, Davy Avenue, Knowlhill, Milton Keynes, Bucks MK5 8FP Tel: 0344 633 1000 Fax: 01908 747 255 www . Sweet Relationship Message, C++ Program To Calculate Sum Of 10 Numbers, City Of San Diego Parks And Recreation Director. NHBC TECHNICAL GUIDANCE 2018 - Spandrel Panels to Cold Roofs Click here to access the document in full. trailer <]/Prev 551895/XRefStm 3277>> startxref 0 %%EOF 717 0 obj <>stream of a single-skin cladding solution for spandrel panels. Spandrel panels used in cold roof voids to create separation between dwellings or to form the inner leaf of gable walls should be designed, manufactured and installed to provide satisfactory performance. Regulation Authority in respect of carrying on its insurance business and its Learn more at: www . 0000010224 00000 n The TRA represents over 65% of the trussed rafter and metal web joist industry in the UK and Ireland. Wet mortar work essentials, Technical Training - Pitched roof coverings 3. 0000071910 00000 n Introduction This chapter gives guidance on the forms of curtain walling and cladding acceptable to NHBC. insurance distribution activities. 0000009622 00000 n 0000038286 00000 n Download. National House-Building Council (NHBC) is authorised by the Prudential Regulation 0000031688 00000 n How to Build Compliant Spandrel Panels, which is endorsed by the NHBC, has been updated to include information about single-skin cladding for spandrel panels.. SPANDREL PANEL RANGE TYPE 1; PANEL BOARD STRUCTURE TIMBER FRAME SPANDREL PANEL - HORIZONTAL 47X72TIMBER, STUDS TYPICALLY @600C/C, ONE LAYER OF 15MM FERMACELL ON BOTH SIDES (OPTIONAL 38X89 STUDSWITH 18MM FERMACELL ON BOTH SIDES) SEE TRUSSED RAFTER ASSOCIATION How to build compliant SPANDREL PANELS By following the guidance within NHBC Standards, many of these issues will be avoided. Find out more. 0000029763 00000 n Includes:The NHBC Standards 2014 edition, introducing 3.2 'mechanical ventilation with heat recovery' and MVHR - getting it right, from the start. Includes: NHBC Standards 2017 (including a new chapter on movement of rendered walls), Part R - electronic communications, Dry-fix verge systems, Overheating in new homes, Balconies and avoiding cladding issues. 0000014199 00000 n 0000030449 00000 n 0000031380 00000 n Gable wall spandrel panels are an offsite manufactured product. spaced within 225mm of the top of the wall, including at gables Items to be taken into account include: They provide an alternative to the inner leaf of an exterior masonry wall at the gable end of a building. The main points to be aware of are as follows: The minimum build up of blockwork below panel on traditional build must be 300mm but must always be higher than the top of the insulation. The panels must be designed to comply with structural, thermal and fire resistance (where required) performance standards and current building standards and regulations. Includes: NHBC Standards 2019 inc. Light Steel Framing; Magnesium Oxide Building Boards; CVPC pipe in sprinkler systems; updated British Standards on roofs; Landfill Tax and more. nhbc spandrel panel technical guidance . Includes:Spandrel panels on gable end walls; external ground levels; water ingress issues; use of combustible materials in buildings over 18m; and more. H\@}. 0000021263 00000 n Discover all the benefits and technical specs of fermacell single-skin cladding for spandrel panels. 0000046837 00000 n National House-Building Council (NHBC) is authorised by the Prudential Regulation Includes:Basements, Foundation Depth Calculator app, Approved Document Regulation 7, Construction Products Regulations, Juliette balconies and British Woodwork Federation Stair Scheme. 0000025557 00000 n Technical guidance on spandrel panels and gable wall panels. Includes: NHBC Standards 2018 - Whats New, Guidance and good practice for CQRs, Drainage under suspended floors, Spandrel panels, NHBC Foundation and Fibres in structural floor toppings. 0000009727 00000 n Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority in respect of carrying on its insurance business and its This unique fibre gypsum building board combines superior fire resistance, acoustic insulation and impact strength. good practice. hb```f`Z rAb,l,L@pDY}![l//? @5/"! Weathering details and fixings, 2.1 The Standards and Technical Requirements, 3.2.6 Rendering, plastering and screeding, 3.3 Timber preservation (natural solid timber), 4.1 Land quality managing ground conditions, 4.1.2 Initial Assessment desk study (all sites), 4.1.3 Initial Assessment walkover survey (all sites), 4.1.5 Basic Investigation (sites where hazards are not identified or suspected), 4.1.6 Detailed Investigation (sites where hazards are identified or suspected), 4.1.7 Managing the risks (sites where hazards are found), 4.2.4 The effects of trees on shrinkable soils, 4.2.8 Design and construction of foundations in shrinkable soils, 4.2.9 Foundation depths for specific conditions in shrinkable soils, 4.3.8 Sloping ground and stepped foundations, 4.4 Raft, pile, pier and beam foundations, 4.5 Vibratory ground improvement techniques, 4.5.4 Confirmation of suitability for treatment, 4.5.6 Compatibility of the ground, design and treatment, 4.5.12 Verification of completed treatment, 5 Substructure, Ground Floors, Drainage and Basements, 5.1 Substructure and ground-bearing floors, 5.1.18 Laying the ground-bearing floor slab, 5.2.7 Construction of suspended concrete ground floors, 5.2.9 Thermal insulation and cold bridging, 5.3.7 Design to avoid damage and blockages, 5.4 Waterproofing of basements and other below ground structures, 6.1.20 Protection of the works during construction, 6.3.3 Supporting load-bearing internal walls, 6.3.8 Partitions: internal non load-bearing, 6.3.10 Construction of steel framed partitions, 6.3.11 Construction of proprietary systems, 6.4.6 In-situ concrete floors and concreting, 6.4.11 Joists supported by intermediate walls, 6.4.20 Floating floors or floors between homes, 6.6.12 Staircases made from timber and wood-based products, 6.8.3 Solid fuel fireplaces and hearths, 6.9.11 Electrical continuity and earth bonding, 6.9.19 Insulated render and brick slip cladding, 6.10.4 Structural design of load-bearing floors and walls, 6.10.10 Construction of load-bearing walls and external infill walls, 6.10.12 Fixing floor decking and ceilings, 6.10.20 Cladding, lining and sheathing boards, 7.1.4 Flat roof, terrace and balcony general design, 7.1.6 Flat roof, terrace and balcony structural design, 7.1.9 Profiled self-supporting metal decks, 7.1.10 Profiled self-supporting metal roofing, 7.1.11 Thermal insulation and vapour control, 7.1.12 Waterproofing layer and surface treatments, 7.1.13 Green and biodiverse (brown roofs) including roof gardens, 7.1.17 Accessible thresholds and upstands, 7.1.18 Parapets and guarding to terraces and balconies, 7.2.10 Strutting for attic trusses and cut roofs that form a floor, 7.2.15 Ventilation, vapour control and insulation, 8.1.7 Electrical services and installations, 8.2.11 Electrical installation requirements, 8.2.12 Pipes, insulation and protection from cold, 8.3 Mechanical ventilation with heat recovery, 9.1.7 Ceramic, concrete, terrazzo and similar tile finishes, 9.3.5 Ceramic, concrete, terrazzo and similar tile finishes, 9.4.3 General provisions cupboards and fitments, 9.4.6 Airing cupboards, cupboards, worktops and fitments, 9.4.7 Ironmongery, prefabricated items and other materials, 9.5.4 Conditions for painting and decorating, 10.1.10 Permanent prefabricated garages and carports, 10.2.4 Freestanding walls and retaining structures, 10.2.8 Garden areas within 3m of the home. 0000021258 00000 n While larger house-builders with technical departments are ahead of the game, many smaller and regional players have been working with our Design team to ensure they can comply with these standards. Important new roofing guidance endorsed by the NHBC has been published by the Trussed Rafter Association (TRA), designed to reduce the risks, costs and waste. Builders' Book - An illustrated guide to building energy efficient homes, Builders' Book - An introductory guide to thermal bridging in homes, NHBC 3D Model - VDPC to flat/mono pitched roofs, NHBC Animation - Stepped cavity tray installation process, NHBC Risk Guide - Spandrel panels to cold roof spaces, Technical Extra 04 - Fixing requirements for guttering and fascia's, Technical Extra 04 - Tiling battens to pitched roofs, Technical Extra 05 - Introducing 2012 Chapter 7.2, Technical Extra 06 - Vapour permeable roof underlays, Technical Extra 07 - Pitched roofs and the importance of the correct detailing and specification, Technical Extra 07 - The Construction Glassfibre Manufacturers Association, Technical Extra 09 - Roof tiling. Note that only certain parts of NHBC's products and services are within the scope of UK financial services regulation. City Of San Diego Parks And Recreation Director, 0000027596 00000 n Your data is kept private and is not provided to third parties. 0000038742 00000 n It is available now as a free download from the TRA website.The guide has been developed by the TRA in association with the NHBC and the Structural Timber Association (STA) and will receive further updates following the outcome of further fire testing, currently being undertaken with the STA. gNLJwsLb|~ endstream endobj 357 0 obj <> endobj 358 0 obj <>stream nhbc technical guidance spandrel panels to cold roofs 7.2/25 jan2018 (first issue) gable panel for masonry wall gable panel. 1st September 2017. Spandrel panels used in cold roof voids to create separation between dwellings or to form the inner leaf of gable walls should be designed, manufactured and installed to provide satisfactory performance. 0000037899 00000 n windows and spandrel panels (January 2016) (First issue) TECHNICAL GUIDANCE 6.9/01 Page 2 of 2 * For the purposes of this guidance the curtain walling is made up of door/window frames and spandrel panels which are coupled together to form arrangements as shown in Figures 1 and 2. They each expand on and explain a specific part of the NHBC Standards. Become a TRA member. 0000009110 00000 n 0000032844 00000 n Requirement: All materials and external surfaces to achieve combustibility class A2-s1, or better, unless they are exempt within 7(3). They also leave little or no site waste. Home. 0000013676 00000 n 0000032922 00000 n 0000031879 00000 n 0000028260 00000 n Important new roofing guidance endorsed by the NHBC has been published by the Trussed Rafter Association (TRA), designed to reduce the risks, costs and waste from poor spandrel panel construction. 0000030224 00000 n Gable wall spandrel panels page 03 2 Structural considerations This guide provides information in relation to single leaf gable wall spandrel panels supported on the inner leaf of a masonry cavity gable wall. 0000027388 00000 n NHBC TECHNICAL GUIDANCE 2018 - Spandrel Panels to Cold Roofs. NHBC - How to build compliant Spandrel Panels. Copyright 2023 Trussed Rafter Association. NHBC - How to build compliant Spandrel Panels. The guide is designed to reduce the risks, costs and waste from poor spandrel panel construction by housebuilders. Currently, NHBC Standards define costal sites as those within One 15mm sheet of fermacell can replace two sheets of plasterboard on either side of the panel to achieve the fire and acoustic requirements of a spandrel panel. The guide is designed to reduce the risks, costs and waste from poor spandrel panel construction by housebuilders. 0000038283 00000 n 0000036376 00000 n 0000002376 00000 n NHBCs registered address is NHBC House, Davy Avenue, Emily Rand Leaguepedia, kept clean and free from mortar droppings spaced at a maximum of 600mm horizontally and 450mm vertically spaced at jambs of openings and at movement joints at a maximum of 300mm vertically and within 225mm of the masonry reveal or movement joint; additional studs may be needed. 0000007781 00000 n nhbc spandrel panel technical guidance. 0000006381 00000 n 0000007677 00000 n 0000040277 00000 n 0000037127 00000 n 0000023888 00000 n 0000040205 00000 n 0000041055 00000 n 0000003760 00000 n 0000034089 00000 n Technical Extra 11 - Pitched roofs. 0000041112 00000 n We discuss the use of spandrel panels, and the range of guidance available, in this edition of Technical Extra. They are designed for use by competent construction industry workers and are for general guidance only. NHBCs registered address is NHBC House, Davy Avenue, 0000033402 00000 n 0000073962 00000 n To help you interpret and apply the NHBC Standards we produce the following Technical Guidance Documents. . 0000046998 00000 n A Technical guidance on spandrel panels and gable wall installation. 0000040669 00000 n Items to be taken into account include: fire resistance Factors to be taken into account when designing and installing spandrel panels over party walls and gable walls with cold roof voids. But TRA members and NHBC inspectors have shared concerns about the quality of construction in some areas, so its vital that housebuilders understand best practice in design and installation to achieve the best results. 0000035376 00000 n Copyright 2023. 0000035977 00000 n You can unsubscribe at any time. 0000032410 00000 n 0000020787 00000 n 0000034853 00000 n Spandrel panels that comply with guidance from the Structural Timber Association . Spandrel panels should be suitably designed to transmit the loads to the roof . 0000032072 00000 n Sign up for all our latest news and technical updates. 0000039820 00000 n Issues to be taken into account include: position ties for partial fill insulation. Spandrel panels can be installed quickly, and faster installation times also mean lower costs. 0000038363 00000 n 0000037905 00000 n 0000039125 00000 n 0000033707 00000 n Spandrel panels that comply with guidance from the Structural Timber Association or the Trussed Rafter Association will generally be acceptable to NHBC. 0000005438 00000 n 0000056915 00000 n company number 00320784. Builders' Book - An illustrated guide to building energy efficient homes, Builders' Book - An introductory guide to thermal bridging in homes, NHBC 3D Model - VDPC to flat/mono pitched roofs, NHBC Animation - Stepped cavity tray installation process, NHBC Risk Guide - Spandrel panels to cold roof spaces, Technical Extra 04 - Fixing requirements for guttering and fascia's, Technical Extra 04 - Tiling battens to pitched roofs, Technical Extra 05 - Introducing 2012 Chapter 7.2, Technical Extra 06 - Vapour permeable roof underlays, Technical Extra 07 - Pitched roofs and the importance of the correct detailing and specification, Technical Extra 07 - The Construction Glassfibre Manufacturers Association, Technical Extra 09 - Roof tiling. 0000041042 00000 n 0000017889 00000 n 0000008257 00000 n Spandrel panels used in cold roof voids to create separation between dwellings or to form the inner leaf of gable walls should be designed, manufactured and installed to provide satisfactory performance. 0000018396 00000 n 0000022916 00000 n jamiroquai hat virtual insanity. 0000009108 00000 n Trussed Rafter Association Trussed Rafter Association. 0000019701 00000 n Click here to access the document in full. The amendments to the Approved Documents provide the further guidance (12.14 (g)) that in addition to external walls and specified attachments ".consideration should be given to other attachments to the wall which could impact on the risk of fire spread over the wall." However, there are times where a more robust approach is advisable. NHBC - How to build compliant Spandrel Panels. . 0000000016 00000 n of UK financial services regulation. 0000035614 00000 n 0000032457 00000 n page 01Gable Important new roofing guidance endorsed by the NHBC has been published by the Trussed Rafter Association (TRA), designed to reduce the risks, costs and waste from poor spandrel panel construction by housebuilders.In a recent NHBC survey of 8,000 new homes sites, about 17% were already using spandrel panels. 0000050101 00000 n 0000023318 00000 n Where is it all going wrong? 0000043130 00000 n 351 0 obj <> endobj xref timber frame spandrel panel - horizontal 47x72 timber, studs typically @600c/c, one layer of 15mm fermacell on both sides (optional 38x89 studs with 18mm fermacell . nhbc spandrel panel technical guidance. trailer <<28BED8DCF7814489B2C280FC9058895E>]/Prev 357340/XRefStm 1705>> startxref 0 %%EOF 403 0 obj <>stream shawnee mission west high school yearbook. 0000029437 00000 n 0000036823 00000 n The main points to be aware of are as follows: The minimum build up of blockwork below panel on traditional build must be 300mm but must always be higher than the top of the insulation. Approved Document B states: Combustible thermal break materials should be limited in size to the minimum required to restrict the thermal bridging. 01:54. 0000002216 00000 n *E*"rED$(#h;/ VUZO[[e~mw=~8&a8?5srr AYT1jMRJ' 5),S5r,7ULVrzRjA!e4LWRR,cJmHsSS 9i"`.1(&cT6<0KbZi)WI0)6[mb%=kD(VT!z ^(Nl8H2$Ub Timber ledger to be fitted between last truss and blockwork to pick up plasterboard. Items to be taken into account include: structural stability. 23 96 0000062223 00000 n herrera family durango, mexico . The new guide for masonry-built homes provides evidence-based technical best practice on the design, structural requirements, fire and acoustic performance, weather protection and safe installation of spandrel panels. 0000042133 00000 n 0000037205 00000 n See a copy of the TRAs presentation here (PDF). 0000031421 00000 n They do not constitute professional advice. 0000039516 00000 n Spandrel panels should be designed by the manufacturer in accordance with the building designer's details and requirements and manufactured in accordance with guidance from the Structural Timber Association (www.structuraltimber.co.uk) or Trussed Rafter Association (www.tra.org.uk). Spandrel Panels Context Around 8000 sites surveyed Approx. 2.1 The Standards and Technical Requirements 2.2 Models3 General 3.1 Concrete and its reinforcement 3.1.1 Compliance 3.1.2 Provision information 3.1.3 Storage materials 3.1.4 Site mixed concrete 3.1.5 Ready mixed concrete 3.1.6 Concrete specification 3.1.7 Admixtures 3.1.8.
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