These nanoplatelets of graphene oxide had been synthesised in our laboratories by anodic exfoliation of graphite sticks. Our electrolyte for this batch of GO was 2% sulphuric acid subject to 15 V DC current. The batch had been synthesised for the purpose of the mix in concrete. It is recommended to use this batch with 3% replacement by cement for the optimum result. Based on that the appropriate mix ratio of cement/water/GO is 33.3/11.1/1.
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