The Bournemouth centre-half is set to make an immediate debut in Tuesday night's big relegation clash against Northampton Town.
John Still's side remain in big trouble after their weekend defeat by AFC Wimbledon but the Daggers boss was upbeat afterwards.
'I'm not overly disappointed with our form,' he said.
'We've just got to be a bit better in both boxes.'
Reading striker Brett Williams meanwhile will remain with the Cobblers for the rest of the season after extending his Sixfields stay.
'I think he has definitely added something to the team,' manager Aidy Boothroyd told the official club website.
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