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I would advice to use sand-asphalt mix layed on the top of existing if the surface is solid, actualy if it solid I would not bother mysef to check what is there. You may use hot bitumen sraied with rate of 300-400gr per sq.m as a binder. But pay attention to fact that the asphalt does not react...

I would advice to use sand-asphalt mix layed on the top of existing if the surface is solid, actualy if it solid I would not bother mysef to chech what is there. You may use hot bitumen sraied with rate of 300-400gr per sq.m as a binder. But pay attention to fact that the asphalt does not react...

Hi Will! The best advice I can give is, let shoes to be done by shoemakers! Hire civil guy, it may save you a lot of money at the end. I am civil engineer, I will never try to the work of mechanical unless I do not have choise! Tal

Tanks Daniel, I am actualy already using the system proposed by you, I am using binding wire to "stich" the panels together. And you are right, the manpower here is very chip ~5$ per day. The walls that I am building are various in their thickness, and I have approximatly 500 sq.m of it. I am...

Thanks John! I am stil trying to experiment. Bent 12mm will not give me acurate thickness of the wall, but it is very good idea, I building now kind of lock that combines two thick iron triangles (90d 60d 30d)one is fixed (bottom) other is removable (upper), both are locked in 1mm steel frame...

Thank Ingy! The reason I am trying to re-invent the weal is that i am working in Nigeria, mostly you can not buy here ready made assesories. I am not using ply wood coated with steel becoze the size of the work does not justify to built steel shatering, the ply wood in this country is compresed...

I am trying to construct formwork for concrete wall, I used plywood coated with steel, I am using UPVC conduit as spacer, and rebar 8mm as a connector, I am trying to design the lock at the end of rebar, so it will use principal of "clin" knok it to lock and knok again to un-lock. Do you have...