Heidelberg Materials has until Friday, Oct. 16 to appeal the refusal of a development permit for a concrete batch plant on the site of its aggregate operation. Cochrane Now/Noel Edey.captiontext { font-size:90%;font-style: italic;margin-right:20px; } Heidelberg Materials has until 4:30 p.m. Friday, Oct. 16 to appeal the refusal of a development permit for a concrete batch plant on its aggregate operation in Cochrane. The Cochrane Planning Commis…