• Lap splices develop their strength from interaction with concrete.


• The higher the yield stress, the greater the lap length required.


• Lap splices have poor cyclic performance.


• To prevent concrete splitting, additional rebar may be required for confinement.

1.2 Design-Constrictive:

• Lap length required for bars in tension is normally longer than same size bars in compression.


• Lap splices double the number of bars leading to rebar congestion which can restrict the flow of aggregates.


• Deterioration of concrete due to improperly designed rebar splices and lack of reinforcement, often leads to premature splice failure.

• The bigger the bar diameter, the longer the lap.


• The lower the concrete strength, the longer the lap length required.


• Corrosion-resistant coated bars are expensive and longer lengths may be used.


• Lap splicing involves time consuming calculations, possible calculation mistakes, and overestimating.

• Performs similar to a continuous piece of rebar.


• Splice strength is developed independent of concrete quality.


• Provides ductility independent of concrete condition.


• Achieves greater strength.


• Offers strength during man-made, seismic or other natural events.


• Superior cyclic.


• Performance.

2.1 Design-Friendly

• Reduces rebar congestion and improves concrete consolidation.


• Improves steel-to-concrete ratio.


• Eliminates lap splices in high stress regions.


• Allows greater flexibility in design options.

• Requires no special skills and reduces labor costs.


• Accelerates construction schedules for reduced cost and improved efficiency.


• Saves valuable crane time.


• Reduces material costs because less rebar is used.

• VTECH offers an excellent current carrying capacity, or strike path, for grounding buildings.


• Resistant to impact loads during man-made or natural events.


• Increased column shear load capacity.


• Promotes low cycle fatigue performance.