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MEVA’s online concrete pressure calculator. This and other digital aids With its integrated combination tie hole recessed in the frame, the are available in the download area at www. meva.net and in the app system can be tied in three ways, both from one side and from MEVA me for iOS and Android.
Flatness of surface ................28 This Technical Instruction Manual contains information, instructions Attachment of accessories .............. 29 and tips that describe how to use the MEVA equipment on the Wall braces ..................30 construction site in a proper, quick and economic way. Most examples Workplaces ..................
Wall formwork Mammut XT Formwork assembly and stripping Important! Ground When assembling and stripping The ground on which the formwork, strictly observe the formwork is going to be local accident prevention rules. placed should be clean, When using our formwork and...
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Wall Formwork Mammut XT Formwork assembly and stripping Step 1 3. String further panels together Place and brace the outside and connect them with M formwork (initial formwork) assembly locks (see page The following description is XT-15). based on an straight wall. Before starting, keep in mind: Panels with a height of 350 cm...
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Wall formwork Mammut XT Formwork assembly and stripping Working scaffold The plug-in walkway bracket is used to support the working scaffold. The maximum bracket spacing for a load of 150 kg/ m² (platform group 2) is 2.50 m as defined in DIN 4420.
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Wall Formwork Mammut XT Formwork assembly and stripping Stripping Please note Do not start stripping before the When stripping manually, detach concrete has set to the point and disassemble the working where it can no longer deform. scaffold and the brace frames It is best to start stripping at the before stripping the panels.
Wall formwork Mammut XT The Mammut XT panel The Mammut XT panel with internal combination tie holes (Fig. 8.1). Combination tie hole with rotating sphere for single- and two-sided tying (Fig. 8.2). Panel connection with the M assembly lock in the continuous groove (Fig. 8.3).
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Wall Formwork Mammut XT The Mammut XT panel Like all other Mammut XT panels, the large Mammut XT 350/250 panel (Fig. 9.1) also has internal tie holes. Thus, for the forming area of 8.75 m² only six ties are required. Besides internal combination tie holes, the 75 and 50 cm...
Wall formwork Mammut XT Parking positions On the Mammut XT panels with widths 250 and 125 cm the assembly lock holders are integrated into the cross stiffeners (Figures 10.1 and 10.2). They serve as parking positions for M assembly locks and Uni- assembly locks.
Wall Formwork Mammut XT Overview of panels Tried-and-tested panels heights and only a few panel widths provide a comprehensive range of widths and heights with increments of 25 cm (Fig. 11.1). Fig. 11.1 Technical Instruction Manual / Status August 2021 XT-11...
Wall formwork Mammut XT Free combination of vertical and horizontal panels All Mammut XT panels can be combined vertically or horizontally (Figures 12.1 to 12.3). The ability to freely combine all panels vertically or horizontally allows for economic width and height extension in increments of 25 cm (Fig. 12.3).
Wall Formwork Mammut XT Tie hole and joint pattern The Mammut XT panel dimensions and the symmetrical internal tie holes result in a uniform tie hole and joint pattern for the highest architectural- concrete requirements. This applies to vertical, horizontal or a combination of vertical and horizontal formwork (Figures 13.1 and 13.2).
Wall formwork Mammut XT alkus all-plastic facing The tried-and-tested polypropylene and aluminium composite facing (Fig. 14.3) has all the positive properties of plywood plus important advantages: longer lifespan, greater load-bearing capacity, better nail-holding ability, fewer and easier repairs, 100% recyclability. Besides the obvious advantages...
Wall Formwork Mammut XT Panel connection Fast and efficient connection of the panels is accomplished with the M assembly lock (Fig. 15.1) whether the panels are assembled side by side or on top of each other (height- extended). The assembly lock can...
Wall formwork Mammut XT Tying methods The Mammut XT allows three Single-sided tying with XT tie rod DW 20 and plastic tube different tying methods: Æ Single-sided tying with XT tie rod DW 20 and plastic tube (Fig. 16.1) Single-sided tying with XT Æ...
Wall Formwork Mammut XT The combination tie hole The combination tie hole (Fig. 17.1) is a rotating attachment point for XT tie rods DW, XT taper ties and tie rods It is recessed and firmly integrated between the centre Fig. 17.2 profiles of the panel (Fig. 17.1).
Wall formwork Mammut XT Sealing the combination tie hole Various cones are available to seal the combination tie hole on the facing side. The XT sealing cone 5 AL20 is used for single-sided tying (Fig. 18.1). All XT panels are delivered with pre-assembled XT sealing cone 5 AL20 .
XT articulated flange nut Only the plastic tube D23/200 XT cone DW 20 over can be used. XT sealing cone When tying Mammut XT XT sealing cone formwork on one side only using DW 20 tie rods (Fig. 19.1) and plastic tubes, the combination...
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Wall formwork Mammut XT Single-sided tying with XT tie rod DW 20 and plastic tube Assembly Notes Before pouring: Æ Correct set-up of the form- 1. Press XT cone DW 20 onto work to the desired wall thick- the XT sealing cone on the ness is facilitated by using a stop initial-formwork panel (Fig. 20.1,...
Fig. 21.1 thickness can be read off the spacers (see page XT-22). Spacer for WT (each 1 cm) When tying Mammut XT formwork on one side only using XT taper ties 20, the combination DW thread WAF 17 tie holes in the panels of the...
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Wall formwork Mammut XT Single-sided tying with XT taper tie 20 To set the wall thickness, remove the cotter pin from the XT taper tie 20 and install the required number of spacers in front of the cotter pin hole (Table 22.3). Each spacer is 1 cm thick.
XT articulated flange Adjustment screw for WT M12 nut using the two adjustment (shown: master) screws. When tying Mammut XT DW 20 thread formwork on one side only using XT taper ties 23, the combination tie holes in the panels of the initial-formwork panel are set Fig.
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Wall formwork Mammut XT Single-sided tying with XT taper tie 23 The XT taper tie 23 (Fig. 24.1) has two adjustment screws for wall thicknesses in 0.5 cm increments: Adjustment screw: master Æ Screw 1 (master) whole centimetres. Æ Screw 2 (slave) half centimetres.
Wall Formwork Mammut XT Single-sided tying with XT taper tie 20 or 23 Assembly Note Before pouring: Æ Correct set-up of the form- 1. Place initial-formwork panel work to the desired wall thick- (Fig. 25.1 and XT-4 and ness is facilitated by using a stop...
DW tie rods and plastic tubes, all combination tie holes in the panels are set to the anchor sleeve position (Fig 26.1). The Mammut XT is designed for use with the tie rod DW 20. Note Plastic tube The XT tie rod DW 20 or the XT Cone for plastic taper tie 20 or 23 can also be...
This and other digital aids are Permissible working load according to DIN 18216 [kN] available in the download area Tie rod elongation at www. meva.net and in the app when using the permissible working load [mm/m] 2.35 MEVA me for iOS and Android.
Wall formwork Mammut XT Flatness of surface The permissible deflection of DIN 18202, Table 3 formwork parts is defined in DIN 18202 (flatness tolerances), Column Table3, lines 5 to 7 (Table 28.1). Distances as limiting values in mm Here, the maximum permissible...
Wall Formwork Mammut XT Attachment of accessories All panels are provided with multi-function profiles with welded-in Dywidag-threaded nuts (Figures 29.1, 29.5 and 29.6). Walkway brackets are provided with integrated self-locking pins (Fig. 29.2) and are mounted on the multi-function profiles and secured with a flange screw 18.
Wall formwork Mammut XT Wall braces Formwork height h (m) A push-pull prop or the brace Wall braces 2.50 3.00 3.25 3.50 3.75 4.00 4.25 4.50 frame 250 with formwork-prop R250+ R250+ R250+ R460+ R460+ R460+ R460+ R460+ connector are attached to the...
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Wall Formwork Mammut XT Wall braces Note A restraint mechanism is required Formwork-prop connector when the lifting force F = 1.5 x -0.9 x G x h > 0. Flange screw 18 Wind G = dead load of the formwork (including platforms) For walls up to 6.00 m we...
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Mammut XT Wall braces The brace is attached to the double-jointed foot plate (Fig. 32.1) or the foot plate 73 dowel (Fig. 32.2) using MEVA quick dowel anchors or anchor bolts, for example. Attachment point for dowel/bolt, e.g. MEVA quick anchor, The permissible influence width...
Wall Formwork Mammut XT Workplaces The fall height of workplaces Working scaffold according to DIN 12811-1, Part must not exceed 2.00 m in accordance with DIN 12811-1. Handrail (min. 15 x 3) According to DIN 12811-1 the design of the working scaffold Midrail (min.
34.2). It prevents falling accidents and at the same time increases work efficiency. Aluminium SB platforms are available for the standard Mammut XT panel widths 250 and 125 cm. Lesser widths are catered for using compensation platforms. The platforms for panel width 250 are available with and without access hatches.
Wall Formwork Mammut XT Workplaces – Folding access platform BKB 125 The folding access platform BKB 125 with folding guardrailing provides safe access and a 125 cm wide working platform Suspension point (Fig 35.1). It enables quick and safe installation of working scaffolds.
Wall formwork Mammut XT Workplaces – Walkway bracket The pluggable walkway bracket 90 (Fig. 36.1) is mounted to a multi-function profile. To insert the bracket, turn it by 45°, then turn it back to the vertical position and Walkway bracket 90 secure it with a flange screw 18...
Wall Formwork Mammut XT Workplaces – Ladder fixture for wall formwork The ladder fixture for wall formwork enables a ladder or an extension ladder to be firmly attached to the horizontal or vertical wall formwork panel and thus ensures safe access to the working scaffold, e.g.
An additional fall protection device on the opposite side of Plug-in support for: the working scaffolds, i.e. on MEVA guardrailing posts 100, 140 and 48/120 UK the other side of the formwork, is required for heights above 2.00 m. Note that this regulation is valid for Germany.
Wall Formwork Mammut XT Crane Hook The permissible load of a When to replace the crane Mammut crane hook (Fig. 39.1) hook is 15 kN (1.5 t). If the reference dimension exceeds 61 mm, the crane hook Handling must be replaced immediately. 1. Open the safety lever as far as This also applies if only one ≤...
Wall formwork Mammut XT 90° corner With Mammut XT, a 90° corner can be produced for all wall thickness (WT) in 5 cm increments without filler areas. Mammut XT 90° outside corners To do this, three outer-corner sizes (Figures 40.1 and 40.2) and two inner-corner sizes (Figures 40.3 and 40.4) are...
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For stabilisation, a cross stiffener 44 Corner combinations must be attached with two Mammut XT 90° Mammut XT 90° Mammut XT panels flange screws 18 at each tie hole (in cm)
Wall formwork Mammut XT 90° corner – Single-sided tying For single-sided tying at the corner a 25 cm wide XT panel is installed next to the XT inside corner and next to the XT panel opposite (50 or 75 cm wide) (Figures 42.1 to 42.4).
Wall Formwork Mammut XT 90° corner – Two-sided tying Besides central tie holes, the 50 and 75 cm Mammut XT panels (Fig. 43.1) also have conical anchor sleeves in the frame. These allow two-sided tying at the corners (Figures 43.2 and Frame tie hole 43.3).
Wall formwork Mammut XT 90° corner – Inside corner The Mammut XT inside corner is galvanised and has an alkus all-plastic facing. The inside corner (Fig. 44.1) has tie holes. Only three assembly locks per joint are required for height 350 cm, all other heights...
Mammut XT 90° corner – Outside corner The Mammut XT outside corners 0, 10 and 15 (Fig. 45.3) together with the Mammut XT panels and the M assembly lock result in a 0 cm solid 90° outside corner solution (Figures 45.1 and 45.2 and page XT-40).
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Wall formwork Mammut XT 90° corner – Outside corner When forming corners by means of single-sided tying (see page XT-42), the M alignment 274.5 rail is not required for pouring heights up to 350 cm and wall thicknesses up to 30 cm (Figures. 46.1 to 46.5).
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Wall Formwork Mammut XT 90° corner – Height-extended outside corner Pouring heights of 4.25 m or higher require the number of assembly locks and alignment rails shown in Table 47.3. The alignment rails must be attached to the panels with two flange screws 18. Always start...
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Wall Formwork Mammut XT Hinged corner The dimension y (Fig. 49.1), which represents the gap between the hinged outside corner and the first double-sided standard Mammut XT panel, can either be calculated using the adjacent formula or can be determined using Table 49.2, depending on the inside angle and the wall thickness.
Wall formwork Mammut XT Stripping corner The M stripping corners 350 Attention (Fig. 50.1), 300, 250 and 125 When slinging with several allow the formwork to be strands, only two strands removed safely and quickly from may be considered to be...
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Wall Formwork Mammut XT Stripping corner Attachment and position of assembly locks The function of the stripping corner can only be guaranteed if the assembly locks connecting the stripping corner to the panels are positioned in certain areas of the stripping corner.
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Wall formwork Mammut XT Stripping corner Attachment and position of assembly locks The function of the stripping corner can only be guaranteed if the assembly locks connecting the stripping corner to the panels are positioned in certain areas of the stripping corner.
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Wall Formwork Mammut XT Stripping corner Attachment and position of assembly locks The function of the stripping corner can only be guaranteed if the assembly locks connecting the stripping corner to the panels are positioned in certain areas of the stripping corner.
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Wall formwork Mammut XT Stripping corner Set-up and handling Note 1. Insert the wedge integrated Returning the stripping corner to Position D into the stripping corner into the its original position by hitting the Bolt with cotter pin Bell-crank lever...
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Wall Formwork Mammut XT Stripping corner Stripping support The stripping support (Fig. 55.1) is used to easily activate the stripping corner from above Spanner size Spanner size 36 with a power screwdriver, a ratchet spanner or a spanner. Tools with width across flats of 27, 30 or 36 mm are to be used.
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Wall formwork Mammut XT Stripping corner Working principle of the Power screwdriver stripping support / stripping corner tool The stripping support has three hexagonal nuts that are operated with tools with width across Hexagonal nut flats of 27, 30 and 36 mm.
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Wall Formwork Mammut XT Stripping corner The M stripping corner can also be used as a stripping support for panels between corners inside a room. In this case, the stripping corner is used to reduce the tension between the panels so that they can...
Wall formwork Mammut XT Length compensation – Mammut XT compensation panel Gaps of 20 to 50 cm can be compensated for with the Mammut XT Central support with two-sided tying Mammut XT compensation compensation panel above compensation width 30 cm panel. Frame profile...
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Wall Formwork Mammut XT Length compensation – Timber filler Gaps up to 10 cm can be filled on-site using timber fillers and Uni-assembly locks 22, while for gaps up to 16 cm timber fillers and Uni-assembly locks 28 are used. The compensation areas...
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Wall formwork Mammut XT Length compensation – Filler widths The maximum filler width X for the bracing at tie hole level (Fig. 60.1) and the bracing at the multi-function profile level is determined by the permissible fresh-concrete pressure and the type of alignment rail used (Table 60.3).
75 or 50 cm wide panels from both sides through the frame tie hole. For single-sided tying, 25 cm wide Mammut XT panels are to be installed next to the inside corners (Fig. 61.3). Two-sided tying Fig. 61.1...
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T wall connection – Different wall thicknesses A T-wall connection with varying wall thicknesses can be created using two Mammut XT inside corners and Mammut XT compensation panel, timber fillers or timber profiles with facings cut to size (Figures 62.1 and 62.2).
Figures 63.3 and 63.4 show Max. various options for connecting Fig. 63.1 formwork to an existing Mammut XT large-size panel wall. Depending on the wall layout and conditions on the construction site, the most suitable solution may vary from case to case.
Fig. 65.1 Additional alignment rail above 50 cm < 50 cm (Mammut XT panels 100 and 125 cm) Mammut XT Standard panel Mammut XT outside corners Number of M assembly locks Fig. 65.2 Pouring height Corner (a) At panel joint (b) h = 1.25 m...
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Wall formwork Mammut XT Stop ends A stop end can be formed either with a stop end bracket, column clamp and alignment rail or a size 1 M column bracket and standard panels. The stop end bracket is placed at tie hole...
Wall formwork Mammut XT Differences in height The assembly lock can be attached at any position on the panel joint between the cross stiffeners (Fig. 68.1). The formwork’s grid-free design does not require additional accessories for panel connection. Vertical, horizontal and inclined panels...
Wall Formwork Mammut XT Horizontal panels Mammut XT allows a lot of forming problems to be easily solved. These include basin walls in water treatment plants, foundations and strip footings which often require a certain height. The central tie holes allows the Mammut XT panel to be used...
90° corner can be constructed in a number of different ways. For information on these options refer to pages XT-42 ff. Mammut XT AL panel with central tie hole AS alignment rail 125 Fig. 70.1 Mammut XT AL panel with...
Wall Formwork Mammut XT Substitution of ties In some cases tie rods can be used. Æ Panels with a height of Tying above panel with Uni-tie claw 3.50 m do not require tying at the top tie holes if the pouring height does not exceed 3.00 m...
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Wall formwork Mammut XT Substitution of ties Æ When combining two verti- cal Mammut XT panels for a total formwork height of 7.00 m, the top ties of the top panel can be replaced by Uni-tie claws that Tying above panel with Uni-tie claw are attached above the top panel (Fig.
Wall Formwork Mammut XT Crane ganging Each transport unit requires two M crane hooks with a load capacity of 15 kN (1.5 tons) attached symmetrically to the Max. 60° centre of gravity! The total weight of the height-extended unit depends on the load capacity of the crane hooks (Figures 73.1 to 73.3).
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Wall formwork Mammut XT Crane ganging Fig. 74.1 Panel unit 3.75 m x 3.50 m = 13.13 m² with three M alignment rails 180 Weight 947 kg Max. 60° Fig. 74.2 Panel unit 7.00 m x 5.00 m = 35.00 m²...
Wall Formwork Mammut XT Column formwork – With standard panels Columns with a maximum side length of 100 cm and a pouring Pouring height Number of alignment rails Number of M height below 425 cm (Fig. 75.3) (cm) (from bottom to top)
Wall formwork Mammut XT Closing the tie holes The tie holes in the concrete are closed using the XT plug D46 (Figures 76.1 and 76.2). It is made of plastic and is suitable irrespective of whether the XT tie rod DW or the XT taper tie was used (see page XT-16) and...
Wall Formwork Mammut XT Sealing the tie holes To seal the tie holes against water pressure, the following can be used: Æ FB active stop XT 20 (Fig. 77.1 and page XT-78), consisting of a tapered fibre- reinforced concrete core and an integrated expansion seal, or Æ...
Wall formwork Mammut XT Sealing the tie holes – FB active stop XT 20 Installation of the FB active stop XT 20: 1. Clean the tie hole. It must be free of contamination and grease and have a smooth surface (Fig. 78.2).
Wall Formwork Mammut XT Sealing the tie holes – Seal kit Installation of the XT taper tie seal kit: 1. Clean the tie hole. It must be free of contamination and grease and have a smooth surface (Fig. 79.2). 2. Adjust the depth stop on the...
Wall formwork Mammut XT Overview of cones and plugs The following overview lists all cones and plugs that are used depending on the tying method. For detailed information about their use refer to the XT sealing cone 5 AL20 corresponding chapters in this XT cone DW 20 Technical Instruction Manual.
Wall Formwork Mammut XT Lifting hook 60 The lifting hook (Fig. 81.1) can be used with any 4-rope crane sling on the construction site to transport panel stacks (Fig. 81.2). Always use four hooks at once. To calculate the permissible load- bearing capacity, assume that only two hooks are used.
Wall formwork Mammut XT Single-sided formwork / climbing formwork STB support frame for single- sided formwork (Fig. 82.1) The Mammut XT formwork together with STB support frames can also be used when concrete has to be poured against earth, rock, an existing wall or the like, i.e.
Mammut XT corners require only two straps. When moving panel stacks, Fig. 83.1 make sure the panels are secure. MEVA secures the Mammut XT panels with anti-slip mats. The transport safety devices should also be used when returning the material from building site.
MEVA formwork so they can our engineers. see its benefits for themselves in actual use. RentalPlus For a flat-rate fee MEVA's "fully comprehensive insurance" for rental formwork and equipment covers all secondary costs that occur after return (excludes losses and write-offs). For the...
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