Cement Shortages Were Short-lived (for now) The length and severity of the shortage has been buffered by the housing slowdown PCA believes the correction in the housing market will continue through 2008, resulting in a possible 9.4 % decline in cement shipments from 2006 PCA has also modified its forecast for 2009, lowering cement consumption expectations by an additional 3.8% IF the economy slips in to a recession