The union representing striking Hawaiian Cement workers has accepted company’s best, last and final offer. Union membership is scheduled to take a ratification vote on Friday. If they approve, it would end the strike that has lasted nearly six weeks.  Teamsters President Mel Kahele says the 67 Hawaiian Cement employees could return to work as early as Monday.  The company presented the offer at 10 a-m Wednesday, and Kahele announced the acceptance of the offer eight hours later.  Kahele says the company’s package is 140 percent more than what they offered prior to the walkout.  Under the new offer, Hawaiian Cement employees get annual pay raises, but would pay 20 per cent of their monthly health insurance premiums. Until now, the company has paid 100 per cent of health insurance premiums.