Slab & Beam Formwork

SLAB & BEAM FORMWORK

Overview
The F-lock System is multi-purpose, meeting all falsework and scaffolding requirements. It can provide support for load bearing construction and service access scaffolding.

BASIC COMPONENTS

Base Jack
Ledger
Standard
Universal Jack
Decking Beam
Infill Beam
Drophead and Socket Adaptor
Plywood

ADVANTAGES OF EARLY STRIKING

The Technique of Early Striking
Early striking is a technique whereby the formwork is removed three to four days after pouring a slab, but the supporting structure of scaffolding or props remains undisturbed until the concrete is strong enough to support its own weight over its full span. Concrete generally takes 28 days to attain its full constructional design strength. Most engineers will only permit the complete support to be removed after about 10 to 14 days, depending on the ambient temperature and cube strength tests.With today’s high costs of formwork it is important to use it as frequently as possible. Traditional formwork locked in situation for 10 to 14 days with a pouring cycle in excess of this is outmoded by the F-Lock early striking system and its facility to speed the cycle of operations. This practice has been widely accepted especially as the rising costs of materials and labour have proved that the early striking is safe efficient and cost-effective.How it is set
A complete set of F-Lock Decking and support is used for the first floor slab. After three to four days of pouring the concrete, the infills and decking beams may be struck for re-use on the second floor slab while support remains in place during the rest of the curing period. In practice, it is found that support around columns. close to walls and beams can be removed. About 1/3 of these are free for re-use. Additionally, about 2/3 of support will be required for the second floor. After pouring the second floor, the formwork may be removed after three to four days.

TRADITIONAL FRAMEWORK

FLOCK DECKING


Erection and steel fixing time	3-4 days initial curing period before striking beams and infills	Remaining curing period 10-14 days Support left in	Formwork and support left for full curing period of 10-14 days

SUPPORT COMPONENTS

STANDARDS The Standards are available to suit any propping or access application economically. The Standards can be used for support or access as required.	SPECIFICATIONS
	LENGTH (m)	WEIGHTS (kg)
	3.0	14.60
	2.8	13.20
	2.5	11.60
	2.3	11.20
	2.0	9.60
	1.8	8.90
	1.5	7.20
	1.3	6.30
	1.0	4.80
	0.6	2.90

LEDGERS Ledgers have identical forged Blade ends, with a minimum of projection to avoid damage. Ledgers are available in a range of standard sizes or can be made to special length if required.	SPECIFICATIONS
	LENGTH (m)	WEIGHTS (kg)
	2.5	8.70
	1.8	6.20
	1.6	5.50
	1.3	4.50
	1.2	4.10
	1.0	3.50
	0.9	3.20
	0.6	2.20

INTERMEDIATE TRANSOMS The component is designed and available for use where distances between ledgers exceed the maximum permitted span of the scaffold boards.	SPECIFICATIONS
	LENGTH (m)	WEIGHTS (kg)
	2.5	10.00
	1.8	7.50
	1.3	5.80
	1.0	5.00

DECKING BEAMS The light weight steel fabrication includes a 100mm wide top flange which eliminates the necessity for a plywood infill, so cutting down maintenance costs. Heavy duty pressings are fitted to the beam ends ensuring adequate protection against site abuse. These incorporate a tongue location for the drophead.	SPECIFICATIONS
	LENGTH (m)	EFFECTIVE WIDTH (mm)	WEIGHTS (kg)
	2.5	100	27.70
	1.8	100	18.20
	1.2	100	12.10

INFILL BEAMS The infill beams have been designed to be used with the Decking Beams to provide a support for plywood decking. The infill beams come in 5 lengths to allow for flexibility of grid sizes to suit all types of slabs .	SPECIFICATIONS
	LENGTH (m)	WEIGHTS (kg)
	1.7	8.70
	1.5	7.80
	1.2	6.40
	0.9	5.00
	0.5	3.20

ADJUSTABLE BASEJACK

The adjustable Base Jack is used at the bottom of the Standard to provide an additional maximum adjustment of 400 mm.

SPECIFICATIONS

LENGTH (mm)

WEIGHTS (kg)

760.0

3.60

UNIVERSAL JACK

The 57KN capacity galvanized Universal Screw Jack has an adjustment range of over 400 mm. It is manufactured from 38 mm outside diameter steel tube with a rolled square thread for fast trouble free operation. The Jack can be used either at the top or the bottom of the vertical standard. In each case the unthreaded portion is inserted into the Vertical so that the correct amount of the Jack always remains inside the Vertical for safety.

SPECIFICATIONS

LENGTH (mm)

WEIGHTS (kg)

760.0

3.60

ADJUSTABLE FORKHEAD Falcon’s forkheads are for timber, steel or aluminum beam support. They are designed for use with single or double timbers of 75mm nominal width, and can be used with a universal jack for height adjustment.	SPECIFICATIONS
	WIDTH (mm)	WEIGHTS (kg)
	200	6.40
	150	4.90

SPIGOT PIN WITH BOLTS & NUTS

Standards are connected end to end with internal spigots. A bolt is used to connect to the lower standard.

SPECIFICATIONS

LENGTH (mm)

WEIGHTS (kg)

295.00

0.80

DROPHEAD

Falcon’s quick action dropheads, supplied with nuts and bolts, are designed to fit standard props or adaptors for F-lock scaffolding. They allow panels and beams to be struck and reused after only three or four days, leaving the support in position for the remainder of the curing period of the concrete slab. The primary head remains in contact with the concrete, while the secondary head and its supporting wedge are released by a single hammer blow. The height of the drophead is 214mm. The striking distance allows the beams and panels to drop only 115mm for their safe removal, a marked improvement in terms of speed and safety when compared with other systems. The dropheads have a load carrying capacity of 40KN.

SPECIFICATIONS

LENGTH (mm)

HEAD DIMENSION (mm)

WEIGHTS (kg)

214.0

152 X 100

4.60

S0CKET ADAPTOR

It serves as a connector for Drophead and Universal Jack

SPECIFICATIONS

LENGTH (mm)

HEAD DIMENSION(mm)

WEIGHTS (kg)

110.0

150 X 150

2.30

BEAM BRACKET

Falcon’s beam brackets eliminate full height propping to beam formwork by locating into slab support verticals (as shown). The brackets accept standard jacks and forkheads.

SPECIFICATIONS

LENGTH (mm)

WEIGHTS (kg)

1.0

4.50

CANTILEVER FRAME Falcon’s cantilever frames fix directly to the vertical at the node points. The frames accept universal jacks for carrying support.	SPECIFICATIONS
	LENGTH (mm)	WEIGHTS (kg)
	1.5	16.10
	1.0	14.80

BEAM SHOE

Falcon’s beam shoes are a simple attachment allowing a 150mm x 100mm timber beam to be used for non-standard or special length beams. They nailed to the timber beams, allowing them to fit onto dropheads.

INFILL BEAM SHOE

A simple attachment allowing a 150mm x 100mm timber beam to be used for non-standards or special length beams.

SPECIFICATIONS

WEIGHTS (kg)

2.00

SPIGOT CONNECTOR (WITH WASHER)

Standards are connected end to end with internal spigots that are provided with washer stopper for faster installation.

SPECIFICATIONS

LENGTH (mm)

WEIGHTS (kg)

220

0.60

COUPLERS

OVERVIEW
Falcon’s drop forged- heavy duty, pressed- medium duty and light duty couplers and fittings are manufactured using modem rapid production system.Benefits
The coupler’s benefits are:

Materials, principally mild steel/forged steel and fittings are tested and complies to BS-1139
Fittings and couplers are tested to resist corrossion due to its galvanised and complete zinc coating