A disciplinary hearing into the strike, which is to be chaired by advocate Wayne Hutchinson, was postponed, apparently because interpreters were not made available.
The hearing is scheduled to last three days.
South African Municipal Workers Union's Johannesburg regional secretary, Meisie Sikaledi, said: "We requested 11 interpreters for our members so that all languages are accommodated as we have members that speak a variety of languages."
The Pikitup strikers are accused of embarking on an illegal strike and of gross misconduct on a variety of dates: December 18 and 19 last year, February 5 and 6, and March 9 and 10 .
At a media briefing in Sandton yesterday, Johannesburg mayor Parks Tau said the strikers "have continuously frustrated efforts by the city to restore services to residents and normality".
Tau added: "Mechanisms to address the workers' demands were activated and an agreement was subsequently signed last year to serve as a framework for addressing the demands. [But] factors that are beyond the city's control prompted the union to abandon the negotiation table and led workers back to the streets."
Tau said his office had received a list of demands from Samwu.
The main calls are for a salary increase and for managing director Amanda Nair to resign .
Nair was accused of fraud in a case involving a R263-million tender, but later cleared of charges.
The EFF claims the strike is a result of the "arrogance of corrupt city officials".
The EFF states: "In our view the workers represent the most critical, dedicated, competent but underpaid section in the City of Johannesburg, and are therefore deserving of each of their demands.
"We are convinced the city can afford salaries of R6000 [to R10000] a month as demanded by the workers, considering that R1-million a day is paid to facilitate the corrupt 'contingency plan'.
"EFF furthermore calls upon residents of Johannesburg to rally behind the demands of workers, who mostly earn less than R4000 a month."
Just R20 for the first month. Support independent journalism by subscribing to our digital news package. 
