Argentina’s Portland cement output increased 5.7 per cent year-on-year in March 2005, to 564,393t, the association of Portland cement producers said on April 6, 2005.  Cement production in Argentina increased 9.6 per cent month-on-month in March 2005. Cement sales on the domestic market, including imports, increased 6.3 per cent year-on-year and 8.8 per cent month-on-month to 553,600t. Argentina’s cement sales increased 12.8 per cent year-on-year in February 2005, to 514,759t, the association said.  Argentina’s construction sector is expected to grow 12 per cent year-on-year in 2005, the president of Argentina’s Chamber of Construction, Carlos Wagner, said.