Hundreds of plumbers, pipefitters, welders and apprentices, who are members of the Unite trade union, will take further strike action on Friday in a dispute over travel allowances.
Last week, construction projects for major companies including Intel, Diageo, Eli Lilly, Analog and the ESB were hit by a 24-hour work stoppage.
The action involved pickets being placed on selected large construction sites where members of the Mechanical Engineering & Building Services Contractors' Association (MEBSCA) are carrying out works.
The workers are seeking the restoration of a payment for the first hour of their travel time, which Unite said was cut as a temporary measure following the 2008 financial crash.
Unite has now served members of MEBSCA with notice of a further day of strike action on Friday 13 September, when pickets will again be placed on selected large construction sites.
The union has branded a call by MEBSCA for the union to engage in talks as "disingenuous".
Unite has accused the association of refusing to engage and make a meaningful offer on the issue of the travel time payment.
MEBSCA has said that the first hour of travel time has been incorporated into hourly rates since 2011 as part of an agreement reached with Unite.
"An agreement was entered into with Unite in 2011, which incorporated the first hour of travel into hourly rates," a MEBSCA spokesperson said.
"This agreement had the effect of increasing the hourly rate which also resulted in a higher rate being paid for overtime and holidays.
"Unite is now seeking to maintain the higher rate of pay while also seeking to reverse the agreement that was freely entered into by Unite at that time," MEBSCA said.
