{
	"Betonkennwerte": {
		"_comment" : "Kennwerte fuer Beton nach DIN 1992-1-1;2011-01 Tab. 3.1",
			"C12/15": {
				"fck": 12, 
				"fck_cube": 15,
				"fcm": 20,
				"fctm": 1.6,
				"fctk_005": 1.1,
				"fctk_095": 2.0,
				"Ecm": 27,
				"Ec1": 1.8,
				"Ecu1": 3.5
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C16/20": {
				"fck": 16, 
				"fck_cube": 20, 
				"fcm": 24,
				"fctm": 1.9,
				"fctk_005": 1.3,
				"fctk_095": 2.5,
				"Ecm": 29,
				"Ec1": 1.9,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C20/25": {
				"fck": 20,
				"fck_cube": 25, 
				"fcm": 28,
				"fctm": 2.2,
				"fctk_005": 1.5,
				"fctk_095": 2.9,
				"Ecm": 30,
				"Ec1": 2.0,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C25/30": {
				"fck": 25,
				"fck_cube": 30,
				"fcm": 33,
				"fctm": 2.6,
				"fctk_005": 1.8,
				"fctk_095": 3.3,
				"Ecm": 31,
				"Ec1": 2.1,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C30/37": {
				"fck": 30,
				"fck_cube": 37,
				"fcm": 38,
				"fctm": 2.9,
				"fctk_005": 2.0,
				"fctk_095": 3.8,
				"Ecm": 33,
				"Ec1": 2.2,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C35/45": {
				"fck": 35,
				"fck_cube": 45,
				"fcm": 43,
				"fctm": 3.2,
				"fctk_005": 2.2,
				"fctk_095": 4.2,
				"Ecm": 34,
				"Ec1": 2.25,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C40/50": {
				"fck": 40,
				"fck_cube": 50,
				"fcm": 48,
				"fctm": 3.5,
				"fctk_005": 2.5,
				"fctk_095": 4.6,
				"Ecm": 35,
				"Ec1": 2.3,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C45/55": {
				"fck": 45,
				"fck_cube": 55,
				"fcm": 53,
				"fctm": 3.8,
				"fctk_005": 2.7,
				"fctk_095": 4.9,
				"Ecm": 36,
				"Ec1": 2.4,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C50/60": {
				"fck": 50,
				"fck_cube": 60,
				"fcm": 58,
				"fctm": 4.1,
				"fctk_005": 2.9,
				"fctk_095": 5.3,
				"Ecm": 37,
				"Ec1": 2.45,
				"Ecu1": 3.5,
				"Ec2": 2.0,
				"Ecu2": 3.5,
				"eta": 2.0,
				"Ec3": 1.75,
				"Ecu3": 3.5,
			}
			"C55/67": {
				"fck": 55,
				"fck_cube": 67,
				"fcm": 63,
				"fctm": 4.2,
				"fctk_005": 3.0,
				"fctk_095": 5.5,
				"Ecm": 38,
				"Ec1": 2.5,
				"Ecu1": 3.2,
				"Ec2": 2.2,
				"Ecu2": 3.1,
				"eta": 1.75,
				"Ec3": 1.8,
				"Ecu3": 3.1,
			}
			"C60/75": {
				"fck": 60,
				"fck_cube": 75,
				"fcm": 68,
				"fctm": 4.4,
				"fctk_005": 3.1,
				"fctk_095": 5.7,
				"Ecm": 39,
				"Ec1": 2.6,
				"Ecu1": 3.0,
				"Ec2": 2.3,
				"Ecu2": 2.9,
				"eta": 1.6,
				"Ec3": 1.9,
				"Ecu3": 2.9,
			}
			"C70/85": {
				"fck": 70,
				"fck_cube": 85,
				"fcm": 78,
				"fctm": 4.6,
				"fctk_005": 3.2,
				"fctk_095": 6.0,
				"Ecm": 41,
				"Ec1": 2.7,
				"Ecu1": 2.8,
				"Ec2": 2.4,
				"Ecu2": 2.7,
				"eta": 1.45,
				"Ec3": 2.0,
				"Ecu3": 2.7,
			}
			"C80/95": {
				"fck": 80,
				"fck_cube": 95,
				"fcm": 88,
				"fctm": 4.8,
				"fctk_005": 3.4,
				"fctk_095": 6.3,
				"Ecm": 42,
				"Ec1": 2.8,
				"Ecu1": 2.8,
				"Ec2": 2.5,
				"Ecu2": 2.6,
				"eta": 1.4,
				"Ec3": 2.2,
				"Ecu3": 2.6,
			}
			"C90/105": {
				"fck": 90,
				"fck_cube": 105,
				"fcm": 98,
				"fctm": 5.0,
				"fctk_005": 3.5,
				"fctk_095": 6.6,
				"Ecm": 44,
				"Ec1": 2.8,
				"Ecu1": 2.8,
				"Ec2": 2.6,
				"Ecu2": 2.6,
				"eta": 1.4,
				"Ec3": 2.3,
				"Ecu3": 2.6,
			}
	}
}