China's urban-fixed asset investment grew faster than expected at a rate of 28.5% in August from a year earlier, the Wall Street Journal reported, citing the National Bureau of Labor and Statistics. August's growth remains much lower than the soaring 40-50% growth rates seen in 2003 and parts of 2004, suggesting the government won't feel the need to curb growth by tightening monetary policy, the WSJ said, citing economists.