A cement shortage is threatening to stop work on sites across the country. Contractors and ready mixed concrete producers face severe disruption after cement deliveries started to dry up this week. Manufacturers said supplies have been hit by maintenance shutdowns and a string of technical problems at plants including a kiln explosion. The problems have left some customers without cement for up to five days already. Contractors and concrete producers are being forced to seek alternative arrangements but they are being thwarted by a dearth of spare cement capacity throughout the country.
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