HFC Floor Formwork (HFC Eco-friendly Floor Formwork)

H.F.C Eco-friendly Floor formwork ( Certified Innovative product by K-PPS ) It was developed with the goal of drastically reducing costs and stabilizing the quality by substituting the high-functional composites floor formwork for the PSC girder construction. The H.F.C floor formwork is a plastic eco-friendly formwork that can reduce construction costs, improve workability as well as reduce logistics and storage costs with the optimized design of the girder type. Product configuration Satisfactory bottom width for all girder types Size(LxBxH), mm Bottom width(B), mm Application Remarks 1000 x 700 x 125 660,680 Road bridge(30M), Railway bridge(25M) 1000 x 740 x 125 720 Road bridge(35M) 1000 x 935 x 125 900 All types of girder 1000 x 1040 x 125 1000 1000 x 1130 x 125 1100 1000 x 1230 x 125 1200 Key features of HFC floor formwork ■ Technical excellence • Proven excellent mechanical properties, dimensional stability, heat resistance, and long-term durability based on engineering plastics material • Performance confirmation by field experiments and technical evaluations by research institutes ■ Excellent cost saving • Can be used semi-permanently repeatedly • Reduced material costs by not using square lumbers(less than 3 times) • Reduced logistics costs by the lighter floor form ■ Better & easier construction • Easier to install, dismantle, move, and store by standardization and integration • 40% shorter construction period against conventional way ■ Eco-friendliness • Recyclable Plastic Formwork • CO2 reduction by reducing construction time and activating eco-friendly materials • Minimum environmental destruction(logging) due to non-use of square lumber H.F.C Eco-friendly Floor formwork ( Certified Innovative product by K-PPS ) Product HFC ECO-Friendly Floor Formwork (recently developed as a bed for manufacturing cast in situ PSC girder) Shape Major clients • All government agencies or contractors in charge of bridges • Sub-contractors or bridge-oriented companies that constructs PSC girders on site Overview • The world's first modular floor formwork: The H.F.C floor formwork is a plastic eco-friendly formwork that developed with the goal of construction safety, quality stability and cost savings for the cast-in-site PSC girder construction. • By replacing old materials(square lumbers, steel plates) and using H.F.C floor formwork, it is anticipated to achieve cost savings(time and manpower) and better quality control(stiffness and shear key) and easier application(light weight). Comparison Conventional way   HFC floor formwork Layer of lumbers and steel plates(left) Bad quality & ugly appearance(right)   Simple and easy installation(left) excellent quality & clean appearance(right) Advantages Operation • Short construction period, safer working condition, better quality control, easier storage and cheaper logistics → Finally SOC budget savings in total Eco-friendliness • Recyclable Plastic Formwork & no need to logging for lumbers • CO2 reduction by shorter working time Reference • Many expressway projects of EX such as Anseong-Yongin, Sejong-Anseong etc. • Railway bridge in the Pohang Youngilman new port link project (KR) • Some road bridge projects of LH such as Gwachen route 47 bypass project etc. • Local government projects such as Gimhae, Andong, Chilgok etc. ※ HFC: High Functional Composite ※ K-PPS: Public Procurement Service of Republic of Korea Structural stability of H.F.C floor formwork • Prevention differential settlement due to un-flatness and poor bearing capacity at site (Prevention of lateral sweep) • 3 times more contact area, a quarter deflection and 6 times stiffness against conventional method Comparison with conventional methods Item Conventional method (Square lumber & steel plate) H.F.C floor formwork Installation on site Patent X No.10-1614833 Loading test X Accomplished at KCL in Oct, 2017 References thousands of (for a long term, conventional way) • Many road and railway bridge projects as below; • Railway bridge in the Pohang Youngilman new port link project (KR) • Road bridge in the Honamseon improvement project (KEC) • Local governments such as Jeonnam, Gangwondo Technical overview Square lumbers and steel plates are used to construct the floor formwork of the cast-in-place girder, but it is difficult to reuse(less than 3 times) and there are problems with quality degradation such as damage to the structure due to deflection and deterioration of appearance. The H.F.C floor formwork, developed to solve the problems of conventional methods, is a plastic eco-friendly formwork that can reduce construction costs, improve workability as well as reduce logistics and storage costs with the optimized design of the girder type. Work flow complicated and difficult Laying of stone powder --> square lumber (longitudinal, transversal) --> steel plate simple and easy Laying of stone powder --> Install floor formwork Key features Quality Sagging of steel plate joints and sagging (swelling) between square lumbers due to materials with non-uniform stiffness and errors due to non-standardized installation methods Based on structural stability (optimized design, special material with excellent stiffness), existing problems are solved, and structural reinforcement and sagging problems are eliminated by applying a shear key Constructability Low efficiency due to separate assembly of heavy steel plates and square lumbers Can be easily installed, moved, and dismantled as an integrated unit 40% shorter construction period compared to the conventional method Weight per meter About 60kg/M (Heavy to handel) About 20kg/M (66.7% lighter) (Light enough to handle) Cost of logistics High cost due to heavy steel plate and non-uniform shape(lumber) Low by low weight and standardized size (80% cheaper than conventional way) Durability Lumber: less than 3 times Steel plate: good Excellent (Semi-permanent use available) (high strength and functional composite material) Eco-friendliness Lumber waste and continuous logging needs Re-usable and reducing CO2 Cost 70USD/m x 100% = 70USD/m (average cost in the market) 80USD/m x 82% (bid rate) = 65.6USD/m (Roughly 8% cheaper)