The three-week-old unofficial strike by bricklayers in Dublin for a £1,000 a week basic wage has ended.
The Building and Allied Trades Union has instructed members to return to work in order to allow the National Implementation Body to investigate the claim.
The BATU general secretary, Mr Paddy O'Shaughnessy, said the process should take about 10 days.
The union reserves the right to resume industrial action if the process, which is being overseen by the head of conciliation services at the Labour Relations Commissio Mr Ray McGee, is unsuccessful.
The director general of the Construction Industry Federation, Mr Liam Kelleher has welcomed the BATU decision.
Mr Kelleher described the NIB process as "exceptional and unique in the prevailing circumstances". The agreement was the first step in restoring orderly industrial relations processes, he said.
No industrial action will take place during the process. During the past three weeks about 200 bricklayers have stopped work on all Sisk and P J Hegarty sites in Dublin.
Developments affected include Croke Park, the Pavilion shopping centre in Swords, Citywest and the LUAS project.