Ytechconst:

It is advisable that you produce on site so as to save more, it is economic wise because cost of transportation will be out of it and damages due to movement will be reduced, also adequate supervision of mixing ration will be at your finger tip, all you need is to employ professionals who deal in production of blocks and paving stones, then seek their consent on the right mix ration that will be favourable, economic wise a little, a still attaining the best quality sandcrete blocks.

Visit this link http://properties.yemtechconstruction.com/index.php?p=1_5_Product-Service it will be very helpful to you, the webpage depicts contact of a well known fellow builder who produces blocks and paving stones using granite chips and other damp proof liquid materials, they usually produce for their own personal projects but upon request by reputable clients they offer supply and on site services especially on large construction projects.

They usually produce blocks that are solid enough and economic wise,we do patronize them whenever we have any construction around lekki, ajah axis, they offer on site production as well in any vicinity either lagos or any part of Nigeria so far the client is willing to bear the cost and pay for the quality. Visit the link and contact them for further clarification,