Precast Concrete Steps Construction Tutorial by Armtec Ltd.
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Armtec Ltd. specializes in the construction of precast concrete steps and precast concrete decks. This tutorial gives insight into the process from start to finish, explaining the intricate stages in deciding on the perfect precast steps and decks for you. Concrete steps are a fast, durable and cost-effective way of providing access to residences, apartments and condominiums.
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Precast Concrete Steps Construction Tutorial by Armtec Ltd.
- 1. Residential Steps and Decks August 10 2011 Melissa Pressnail B.Eng James Regier Ebi Moradi P.Eng Tony Hof
- 2. Residential Steps and Decks 1.About Armtec 2.What are Precast Steps ? 3.Benefits 4.Steps vs. Decks 5.Finishes 6.Support Requirements 7.Site Preparation 8.Installation 9.The Process 10.Testimonials 11.Full Package From Armtec 2
- 5. About Armtec • Armtec is a leading global infrastructure and construction materials company • 48 locations in Canada, including production facilities and offices in every region • Global customer base with projects around the world • Approximately 2,000 employees, $500M • Toronto Stock Exchange trading symbol: ARF.UN 5
- 6. Introduction • BEBO Concrete Arches • Multi-Plate • Bin-Wall • PARAGLAS SOUNDSTOP • Bin-Wall Bridge Abutments • Platon • Bridge Girders and Beams • Precast Concrete Steps • Bridge-Plate • Precast Concrete Structures and Elements • Communications • Precast Tunnel Liner • Concrete Sound Fencing • Precast Utility Pads • Corrugated Steel Pipe • Prestressed Hollowcore Slabs • Double Tees • Sports Venues • Durisol Precast Noise Barriers • Stormwater Treatment/Detention • Electrical Systems • Geosynthetics • Streetlight Bases and Traffic Control • HDPE Pipe • Sumps and Trenches • HDPE Tubing • Tunnel Liner Plate • Mechanically Stabilized Earth Retaining • Ultra Flo Steel Pipe Walls • Water Control Products 6
- 7. 2/ What are Precast Steps ?
- 8. What are Precast Steps ? “Precast concrete is a construction product produced by casting concrete in a reusable mold or form which is then cured in a controlled environment, transported to the construction site and lifted into place” - wikipedia 8
- 9. 3/ Benefits Finishes
- 10. Benefits Why use Precast Steps ? •Durability •Ease of installation •Quality appearance Fully customizable •Speed of install • In and out in less than an hour • All weather install •Consistent factory quality & certification • CSA, ISO • Consistent finish quality • Climate controlled manufacturing 10 environment
- 11. 4/ Steps vs Decks
- 12. Steps vs Decks Steps • The risers are cast monolithic with the top slab • The risers are the same width as the front edge of the top slab • Available in any size with any number of risers • Angles available on top slab 12
- 13. Steps vs Decks Decks (Verandah) • The risers are cast separate from the verandah • The risers are not necessarily the same width as the verandah • Angles on verandah is available • Available in recessed configuration for brick or rock feature 13
- 14. 5/ Finishes Finishes
- 15. Finishes Etched Risers • Broom surface on treads and top slab as a result of face up casting. The vertical surfaces on the risers between the bullnose and the tread are exposed 15
- 16. Finishes Etched Sides & Risers • Broom surface on treads and top slab • The vertical surfaces on the risers between the bullnose and the tread are exposed • All vertical surfaces on the risers between the bullnose & the tread and on the sides of the unit below the bullnose are exposed 16
- 17. Finishes Recessed Deck • Broom surface on treads and top slab as a result of face up casting • The vertical surfaces on the risers between the bullnose and the tread may be plain or exposed • The top slab overhangs the deck apron to allow brick or stone to be built up on vertical face 17
- 18. Finishes Exposed • All surfaces (vertical and horizontal) are exposed aggregate • Aggregate colour options of grey or brown 18
- 19. Finishes Plain • Broom surface on treads and top slab as a result of face up casting. • All vertical surfaces are steel form finished 19
- 20. 6/ Support Requirements Finishes
- 21. Support Requirements • Brackets • Smaller Steps (up to 4’ deep and 8’ wide) • Smaller Decks (up to 4’ deep and 8’ wide) • Post loads require double brackets • Piles • Minimum requirement for larger steps and decks • Option for post loads • Wing Walls • Extension of the foundation wall • Best option for any installation 21
- 23. Site Preparation Wing Walls • When used with overpoured deck aprons, they allow for grade variance, eliminating the void under the deck • Allows backfilling prior to step installation 23
- 24. Site Preparation 24
- 25. Site Preparation Access to homes and sites • Siding should be installed after step installation. Siding contractors should not be moving steps for siding installation. 25
- 26. 8/ Installation
- 27. Installations • Rear mount knuckle booms on 8 ½ ton tandem truck • Steps and decks are installed using the inserts on the top slab 27
- 28. 9/ The Process Finishes
- 29. The Process • Orders are received by the customer service representatives 29
- 30. The Process • Drawings are reviewed 30
- 31. The Process • CAD drawings for production are produced • Orders are sent to production 31
- 32. The Process • Shape is laid out • Rebar is placed • Lifting inserts placed on rebar Step Form Deck Form 32
- 33. The Process Installers process on site: • Installer check location for proper fitting of step • Ensures wing wall is at proper height 33
- 34. The Process Installers process on site: • Truck is backed in as close as possible to maximize crane efficiency 34
- 35. The Process Installers process on site: • Step is lifted off truck and put into place, shims are adjusted as required 35
- 36. The Process 36
- 37. 9/ Testimonials Finishes
- 38. Testimonials “…more efficient timeline” “… consistent quality of the finished product” 38
- 39. Summary • Ease / speed of installation • All weather install • Installation in less than a half hour • Superior Appearance • Consistent finish quality • Highly customizable • Designed to Perform: • Produced in controlled manufacturing environment • Built to last 39
- 40. Full Package From Armtec • Platon • Sound Walls • Lock + Load Retaining Walls • Prestressed Hollowcore Slabs • Window Wells and Basement Stairs 40
- 41. Full Package From Armtec - Platon • Impermeable damp proof barrier • A uniquely dimpled 24-mil high-density polyethylene (HDPE) sheet • The dimples form an AIR GAP under the impermeable surface of Platon 41
- 42. Full Package From Armtec - Platon Foundation Protection •If any water does manage to get by the Platon sheet it flows through the air gap to the footing drain. Flooring Protection: •Lifts finished floor off cold damp concrete •Protects finished floor from slab moisture 42
- 43. Full Package From Armtec – Sound Walls • Absorptive • Reflective • Transparent 43
- 44. Full Package From Armtec – Sound Walls Solid Rock Fencing – Stone Tree 44
- 45. Full Package From Armtec – Sound Walls Durisol - Sound Absorbing Panels 45
- 46. Full Package From Armtec – Sound Walls Paraglas Soundstop 46
- 47. Full Package From Armtec – Sound Walls Paraglas Soundstop 47
- 48. Full Package From Armtec – Lock + Load 48
- 49. Full Package From Armtec – Lock + Load COUNTERFORT PANEL
- 50. Full Package From Armtec - Hollowcore Prestressed Hollowcore Slabs: • Sound barrier between floors • Provide excellent fire resistance • Lightweight 50
- 51. Full Package From Armtec Window Wells and Basement Stairs 51
Editor's Notes
- LOCK+LOAD is a UNIQUE non stacking modular cantilever used as an ideal facing for MSE retaining walls. LOCK+LOAD is the lightest concrete facing available… 42lbs/ft2 or 200kg / m2. Around one half the unit density of Alan Block… it can do this because it does not stack… 42 MPA or 5500 psi fiber and steel reinforced concrete units that only touch the soil… there is no bearing of concrete to concrete. LOCK+LOAD puts over 1050 sf or 97sm on a 45,000lb truck. It is one tenth the weight of big blocks.