1) Unload vehicles
2) Take care to avoid impact on panel edge
3) Align stacking timbers as shown
4) Attach lifting clutches to cast in inserts
5) Pull back slightly to ensure panel does not slip off stack during pitching
6) Lift panel to vertical, pause before taking full weight to avoid swing
7) Lift panel to location and align to column centre lines, lower into position
8) Attach fixing plates with M12 bolts into cast sockets and tighten
9) A vertical gap of 0mm to 20mm should be anticipated on the column face
10) Apply joint sealant to horizontal and vertical joints
It is recommended at all persons involved in the off loading and installation of any concrete panels should have training and hold current certificates in all relevant areas such as cranage, forklift truck operation, use off access hoists and carry current CSCS cards.
All persons must be equipped with safety clothing including boots, gloves, high visibility clothing hard hats & safety glasses. Where concrete cutting or grinding is to be carried out, dust masks must be used.
THESE NOTES ARE ONLY ISSUED AS GUIDANCE. ALL SPECIFIC SAFETY INSTRUCTIONS REGARDING WORKS WITHIN THE SPECIFIC SITE MUST BE FOLLOWED AT TIMES.
Main hazards include working with mobile plant & machinery, working with suspended precast units, working within a construction site and damage to structure and third parties. Working at heights and falls.
Main risks associated include: death, crushing, dust inhalation & falls
There are no specific risks to the environment other than dust and noise during cutting operations.
There should not be any manual handling of items over 15kg required.
Any manual handling tasks must be executed in accordance of Manual Handling Regulations by persons trained in manual handling.
Telehandler – Specification to suit unit weight.
Simple 2 leg lifting chains
1) Suitable site access and safe unloading areas must be arranged prior to delivery of units. If there is any concern over ground stability then an engineer must be consulted. Units should be unloaded using fork tines on telehandler and stacked on level ground as shown in drawings (no more than 6 high). Stacking timbers MUST be correctly arranged to ensure stack stability and avoid possible failure in the precast units.
2) Steel building frame centres should be measured and units allocated to each bay. Datum levels should be checked and suitable packing shims placed to suit levels. Site foreman must check suitability of landing cleats (where applicable) for seating area and intended loads. Any concerns must be relayed to Engineers for ACP & Building Suppliers and investigations completed before panel installation can commence.
3) Single precast units should be transported from stacking area to lifting area via telehandler. Units must be lowered to ground onto timber packers prior to slinging.
4) Units should be lifted using suitable telehandler with 2 leg simple certified, tested chain with safety hooks onto tested lifting clutches or lifters (available from ACP Concrete Ltd) located in lifting inserts or holes cast into the top edge of the panels. Checks of rated lifting capacity of loader, lifters, chains or slings MUST be made against weights of Units before handling. Check lifters and chains are fully secured.
5) Move panels into position starting with panels for main building bays and than the gable end bays once sides have been fitted.
For panels positioned between the columns:
6) Check orientation of the panels. Most panels are designed to have the smoothest side facing the load. This is not always the case. CHECK WITH THIS OFFICE IF THERE IS ANY DOUBT. Position panels between steel columns, pack to ensure even bearing at each end. Fixing packing material (wood or steel) to ensure panels cannot possible shift out of position.
7) All panels should be assembled ‘dry’ with sealant once all walls are complete.
8) Secure panels in position (using bolts and plates if supplied)
Go to step 9)
For panels positioned on the inside face of the columns:
6) Check orientation of the panels. Most panels are designed to have the smoothest side facing the load. This is not always the case. CHECK WITH THIS OFFICE IF THERE IS ANY DOUBT. Position panels to suit centres of columns, this should result in a gap of approximately 12.5mm between panels. This gap may vary due to exact column spacing.
7) All panels should be assembled ‘dry’ with sealant applied once all walls are complete.
8) Secure panels in position using bolts and plates supplied before removing lifting gear support, do not over tighten.
9) Install gable end panels as above. Finally position the corner gable panels; these will meet the side panels some way along from the end (see drawings). Once positioned offer up suitable angle support brackets and mark fixing points avoiding strand positions. Fix angle in position and secure panels and remove lifting gear.
10) Vertical joints should be backed with preformed backing rod (or expanding foam) to provide a joint of no more the 15mm deep. Mastic sealant will be applied as below. Where possible masking tape should be placed to either side of the joint prior to mastic placement to ensure neat edges.
11) Apply sealant to horizontal and vertical joint’s using bulk mastic applicator (available from ACP). Please follow instructions on application of sealant for the “Health and Safety Data Sheet” for joint sealants. One ‘sausage’ should seal approximately 8m of joint. Tool into joint using a pointing trowel or wetted stick.
12) Fill lifting holes (if used) and any areas damaged during installation with a bonding mortar using a suitable SBR (i.e. Unibond, Sika Latex etc)
13) Apply surface protection where necessary.
14) Once store is loaded, check and tighten all bolts and check regularly.
15) An annual maintenance check should be carried out by a suitable responsible person. Check all surfaces and fixings for any signs of corrosion. Also check all surfaces of the panels and supporting structures for any signs of cracks or impact damage. A qualified engineer must be contacted if any corrosion or cracks are noted.
Notes to be read in conjunction with ACP drawings.
IF IN DOUBT ASK, WE WILL BE PLEASED TO HELP
Safe Storage & Disposal of Materials
Sika Sealant No special consideration for storage other than avoidance of frost. Store in dry when not required
No special requirement for disposal of packaging. Avoid litter and use skips on site. Remove unused packs from site for later use on other projects.
Avoid watercourses with material and packaging.
Concrete Panels No special consideration for storage
No special requirement for disposal