No fines concrete mix ratio 6 : 1 ... 6 x 20mm crushed blue metal 1 x Portland cement No fines concrete will allow water to pass through but still have a compressive strength of around 1.4 MPa to about 14 MPa depending on the ratio chosen
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Cement Cloth Planters Its a one to four ratio... ( 2 cups cement to 8 cups water) however much u want to make. They said to make it the thickness of onion ring batter. Make sure that your cloth is well saturated before you drape it.