Standard & Designated Concrete Logical Concrete supply a full spectrum of mixes both standard strength mixes and prescribed mixes such as. General suite of mixesGEN0, GEN1, GEN2, GEN3Paving suite of mixesPAV1, PAV2Standard suite of mixesST1, ST2, ST3, ST4Design strength mixesC7/8, C10, C15, C20, C25, C30, C35, C40, C50Reinforced (RC design mixes)RC25, RC30, RC35, RC40 Most mixes are available in a range of workability to suit your specification. Logical ConcreteHigh quality service and high quality concrete. Logical ConcreteHigh quality service and high quality concrete. Logical ConcreteHigh quality service and high quality concrete. Logical ConcreteHigh quality service and high quality concrete.