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Deck Plate Introduction

Deck Plate Introduction

Deck Plate is an innovative construction material that has revolutionized construction methods by replacing traditional plywood formwork. It is an essential building material that offers significant benefits, including time and cost savings, as well as improved safety, making it a game-changing construction material.

Shape and Cross-Section

Conventional system

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Speed deck plate

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Comparison of construction method

Comparison of construction method
Method Conventional system SPEED DECK
Section Conventional system SPEED DECK
Concept We install temporary supports and formworks with plywood form, and place the rebar on the jobsite. The oldest general method of reinforced concrete structure. Recently generalized system method of reinforced concrete structure as the integrated and prefabricated system by fixing steel wires on 0.5T steel plate at the factory
Process order Temporary support placing → plywood form installation → Rebar placing → Pouring concrete → Concrete curing protection → Formwork removal → Disposing of materials Stiffener installation → Deck installation → Connecting & Distribution bar installation → Pouring concrete
Construct ability
  • 1. Need many labors
  • 2. Form remaining period is needed until the concreted surface gets cured.
  • 3. It’s hard to go to the follow-up process before dismantling formwork.
  • 4. It’s impossible to work rebar placement and formwork operation at the same time.
  • 1. The process is simple
  • 2. Less process friction between deck installation and rebar placement
  • 3. Minor transport by labor is easy
  • 4. High workability.
Quality
  • 1.Covering depth is irregular
  • 2. The rebar spacing is not regular due to the rebar work on the jobsite.
  • 1. The rebar spacing is regular by prefabricated wire truss girder – The Structural Stability
  • 2. The covering depth is regular as the main bars are fixed on the lattice
Environmental sector
  • 1. Production of numerous construction waste(Lumber and plywood) on the site
  • 2. Generation of noise and dust during the support dismantlement.
  • 1. There is only small construction waste due to non supporting.
  • 2. Less noise and dust on the site
  • 3. Easy site management(cleaning) due to less temporary materials
Safety sector
  • 1. Poor safety environment due to high place work and input of many labors and materials
  • 2. Accidents by fallen objects can frequently occur while working the dismantlement.
  • 1. Less workload of high place by the integrated materials
  • 2. Less demolition work

Construction period

Construction period
Method Conventional system SPEED DECK PLATE
Formwork Construction ability per labor 45㎡ 60㎡
Labors(people) 22.2 people
(1000m2/45m2=22.2)		 16.7people
(1000m2/60m2=16.7)
Man Hour(H) 177.6hours
(22.2people X 8hours/day)		 133.6hours
(16.7공수 X 8hours/day)
Rebar Construction ability per labor 40㎡ 65㎡
Labors(people) 25 people
(1000m2/40m2=25)		 15.4 people
(1000m2/65m2=15.4)
Man Hour(H) 200 hours
(25people X 8hours/day)		 123.2 hours
(15.4people X 8hours/day)
Man Hour Total(H)
(formwork + rebar)		 177+200=377.6 hours 133.6+123.2=256.8 hours
Construction period(Rate) 100% 256.8 ÷ 377.6 = 68.1%
About 31.9% saving
** Above-mentioned data are based on one person’s working for 8 hours/day & 1,000㎡
** Dismantlement factor is not considered in this calculation.

Economical efficiency comparison of slab

Economical efficiency comparison of slab
Construction type Unit (Slab thickness: 150 mm, Metropolitan) Remark
Q’ty Unit price (KRW) Conventional system Speed deck
1. Conventional system
Formwork material cost ㎡ 1 12,711 12,711 Plywood formwork 3 times, 20P, appendix of 物價情報 2019.7 Ver.)
Formwork labor cost ㎡ 1 37,329 37,329 (20P, appendix of 物價情報 2015.7 Ver.)
Support material cost ㎡ 1 1,487 1,487 Usage for three months,(2P, appendix 物價情報 2019.7 ver.)
Support labor cost ㎡ 1 14,633 14,633 (2P, appendix of 物價情報 2019.7)
Material cost of rebar on the site kg 10.5 725 7,613 (52P D10 of 物價情報 2019.7 Ⅱ)
Labor cost of rebar on the site kg 10.5 798 8,379 (19P, appendix of 物價情報 2019.7 ver.)
2. Deck system
DECK wire amount kg 9.75 Included to material cost of Deck system
Material cost of rebar on the site kg 5.8 725 4,205 Connecting bar, Additional bar
Labor cost of rebar on the site kg 5.8 798 4,628 Connecting bar, Additional bar
DECK material cost
(Top bar:13, Bottom bar:8) 		㎡ 1 35,100 35,100 SD3, (178P, 物價情報 2019.7 Ⅱ)
DECK installation cost ㎡ 1 9,835 9,835 (43P, appendix of 物價情報 2019.7 Ver.)
Total 84,152 53,768 1㎡ /unit price
Comparison 100% 64% About 36% saving