when is a concrete floor sdry branz build

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When is a concrete floor slab dry? BRANZ Build

2009-6-1  Concrete floor slab drying times Natural drying of a concrete slab will take several months. Under good drying conditions, a rule of thumb is to allow at least 1 month of drying for every 25 mm of slab thickness after the building is closed in. For a 100 mm thick slab, this means a minimum drying time of 4 months is needed (see Figure 1).

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When is a concrete slab dry enough? BRANZ Build

发布日期: 4月 01, 2008

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BUILD RIGHT When is a concrete slab dry enough?

2014-1-29  BUILD RIGHT When is a concrete slab dry enough? Covering a concrete slab too soon can result in the floor covering being damaged. To get the timing right, it helps to understand what the various measurements are telling you. By Malcolm Cunningham, BRANZ Principal Scientist Figure 1: Moisture profiles in a drying concrete slab. 100 90 80 70 60 ...

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Concrete basics BRANZ Build

2011-4-1  Unexpected cracking is a frequent cause of dissatisfaction with finished concrete, particularly floor slabs. Restriction of movement due to drying shrinkage is the most common cause. Water that is excess to cement hydration requirements will ultimately evaporate, causing the hardened concrete to decrease in volume.

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BRANZ TR8 Concrete floor systems BRANZ

TR8 software is based on BRANZ technical recommendation TR8 Method for fire engineering design of structural concrete beams and floor systems, which you should use to gain an understanding of the basis for the software.It is referenced by NZS 3101 Concrete structures standard as an acceptable calculation method for determining the fire resistance of concrete floor systems.

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BU592 Concrete slab-on-ground floors BRANZ

Durable concrete with little or no shrinkage cracking is of prime importance to homeowners, who expect that the concrete floor of their house will continue to perform well beyond the 50-year minimum design life the New Zealand Building Code requires. This bulletin outlines the specifications and levels of workmanship required to minimise cracking in residential concrete slab-on-ground floors.

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Concrete slabs and control joints BRANZ Build

2005-8-1  Concrete shrinks as it sets and will continue to shrink for at least 12 months after placing, depending on drying conditions. About 50% of the shrinkage occurs within the first 4 months.

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MAXRaft Concrete Slab Floor System BRANZ

2019-3-20  The MAXRaft Concrete Slab Floor System is an insulated, concrete slab-on-ground flooring system for use in residential and light commercial buildings. The MAXRaft Concrete Slab Floor System features a continuous polystyrene insulating layer beneath the slab and to the exterior perimeter surface.

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BRANZ Build

2021-8-15  Print subscription. Build is only available through the BRANZ Shop or by phoning 0800 80 80 85. If you are a building contractor and pay the Building Research Levy, your subscription to Build

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BU576 Edge insulation of concrete floor slabs BRANZ

Approximately 80% of the heat lost through a concrete slab on ground occurs through the edge. Insulating the edge of the slab is likely to be required where a floor is heated with embedded reticulated hot water or electric cabling and is recommended for any on-ground concrete floor slab. This bulletin outlines the current options and the design challenges when providing edge insulation to ...

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Concrete slab floor construction BRANZ Renovate

2021-7-15  The concrete was then cured by keeping the slab wet for seven days. Pipes All in-slab waste pipe locations had to be accurately positioned and tested before the slab was poured. Back to top. Finishes When concrete was used, wall-to-wall carpet was a popular floor

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BU541 Concrete floor slabs BRANZ

This bulletin describes the general requirements for on-grade concrete floor slabs as described in NZS 3604:2011 Timber-framed buildings. Also discussed are important changes to New Zealand Building clause B1 Structure. The bulletin covers: Building Code requirements concrete specifications finished floor levels and foundation edge construction footings granular hardfill damp-proof membranes ...

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BRANZ build with Futurebuild® LVL » Futurebuild LVL NZ

BRANZ build with Futurebuild® LVL. It’s only fitting that an independent research company who investigate the construction and design of buildings in New Zealand would choose to construct its offices in timber.BRANZ’s Nikau building was constructed with large-span Futurebuild® LVL portal frames and plywood shear walls.The single storey building was designed using the Expan post-tensioned ...

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Fire safety design BRANZ

BRANZ TR8 Concrete floor systems TR8 software is a model to predict the fire resistance of concrete slabs and floor systems and can be used for the design of reinforced or prestressed concrete floor systems when required to have fire resistance.

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Floors BRANZ ALF

Build magazine article Simply efficient concrete slabs, Build 157, 1 December 2016; Bulletin Edge insulation of concrete floor slabs BU576 (2014). Suspended concrete floors have similar heat loss characteristics to suspended slab floors and therefore the R-value of suspended concrete floors is similar to that of timber floors.

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BRANZ Appraisals Product

2020-9-6  concrete floor slabs. Scope 2.1 The Tray-dec Flooring System is a permanent steel formwork, reinforced concrete floor system for use in buildings subject to specific engineering design. 2.2 The Tray-dec Flooring System has been appraised for use in dry internal environments. Building Regulations New Zealand Building Code (NZBC)

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Concrete construction Smarter Homes

A concrete slab floor exposed to direct sunlight is one of the most effective ways to absorb and store warmth in your home. Properly designed with maximum exposure to winter sun over the middle of the day, the slab will absorb energy from the sun during the day and then radiate that warmth out as the temperature drops in the evenings.

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Gripset® 38FC and Gripset® 2P Wet Area Membranes BRANZ

Where floors are designed and constructed such that deflections do not exceed 1/360th of the span. The use of Gripset® 38FC and Gripset® 2P Wet Area Membranes on concrete slabs where hydrostatic or vapour pressure is present from below is outside the scope of this Appraisal.

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BRANZ Appraisals Product

2021-2-11  Acceptable Solution E2/AS1 or a cladding system covered by a current BRANZ Appraisal. 7.4 For suspended timber floors, either conventional wood-based sheet flooring or 25 mm Metra Panel floor panels may be used. Metra Panel floor panels are only for use where the construction is carried out in a controlled, dry environment.

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FREE TO ALL BUILDERS BUILDER’S MATE

2020-4-28  BRANZ books. One new title and two new editions have . recently been published by BRANZ. They are: • Good Practice Guide . Concrete Slabs and Basements – a guide to the planning, design, detailing, specification and construction of ground floor slabs and basements in residential buildings • Building Basics . Steel Framing – a new

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Concrete slab floor construction BRANZ Renovate

2021-7-15  The concrete was then cured by keeping the slab wet for seven days. Pipes All in-slab waste pipe locations had to be accurately positioned and tested before the slab was poured. Back to top. Finishes When concrete was used, wall-to-wall carpet was a popular floor

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Remediation details: inadequate ground clearance BRANZ ...

2014-9-9  Remediation of levels for concrete floor/deck. Original detail as proposed, which has some potential issues at the floor/deck junction due to the proposed 50 mm set-down and the detailing of the balcony wall with the unflashed stucco capping,

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BRANZ Appraisals Product

2020-9-6  concrete floor slabs. Scope 2.1 The Tray-dec Flooring System is a permanent steel formwork, reinforced concrete floor system for use in buildings subject to specific engineering design. 2.2 The Tray-dec Flooring System has been appraised for use in dry internal environments. Building Regulations New Zealand Building Code (NZBC)

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Options for floor insulation

In older details a timber strip was used, but BRANZ Bulletin 576 Edge insulation of concrete floor slabs shows a new detail that incorporates a 10 mm thick strip of XPS with an R-value of R0.25. The reason for the change is to minimise the potential for differential movement at the junction between the slab and the foundation wall under ...

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Earth building wins award BRANZ Maintenance Strap-happy

2020-4-28  Fixing the trimming stud to the floor joist for timber-framed floors applies to a single-storey building or to upper floor framing to the intermediate floor. Where ground floor framing is on a concrete floor slab, the strapping is folded under the bottom plate

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The different types of wet area floor construction

The floor structure for wet areas may be: concrete – slab-on-ground or suspended; framed in timber or steel. Concrete floors. Both slab-on-ground and suspended concrete floors for wet areas: are deemed impervious when steel trowel finished or polished; provide a good substrate for a wide range of wet area finishes; can be laid with falls and ...

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Polished Concrete Floors - What Is Concrete Polishing ...

2021-4-19  Polished concrete is the ultimate no-wax flooring material. With the proper floor grinding equipment and experience, concrete polishing contractors can grind concrete surfaces, whether new or old, to a high-gloss finish. Factor in the superior durability and performance of concrete, and it's no wonder why retail, commercial warehouse and office ...

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Site suitability on a building site - Where is the best ...

A thorough investigation and assessment of ground conditions and stability is essential to determine whether a site is suitable for building on, where the best place may be to locate a building and the type and size of foundations that will be required.

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Is Slab Edge Insulation as Effective as it Seems? – EBOSS

2014-11-24  Regarding concrete floors, it further notes that “The floor R-value is met by concrete slab-on-ground” i.e. no insulation is necessary under an unheated concrete floor that is laid directly on to a prepared ground surface. Nor is there any requirement for slab edge insulation.

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Pros and cons of wet area floor finishes - Level

2020-11-9  Vinyl. Vinyl is an impervious, water-resistant material that is ideal as a wet area floor finish. It is also suitable for use in showers. It is available in sheet and tile form but only sheet vinyl is permitted under E3/AS1. Vinyl must be laid with heat or solvent-welded joints to be fully watertight.

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