The French government has claimed that actions across the country in protest against the major reform of the pension system is costing the economy €200m-€400m a day.
The senate approved the reforms on Friday, and politicians are expected to sign the bill this week, meaning that there will be no letup in the protests.
The country's 12 oil refineries were blocked again yesterday, as were ports in Marseille and Le Havre, causing delays to fresh produce deliveries.
Union leaders have called for a massive mobilisation for two more days of strikes and protests, the first this Thursday and the second on 6 November.
Polls have shown that the vast majority of French people support the strikers, while Nicolas Sarkozy's approval ratings have fallen to among the lowest of any French president in recent memory.