1. Structural design of concrete block pavements;Gonzalo;J. Transp. Eng., ASCE,1990
2. The use of coloured concrete in creative design;Kurz;Proc. 3rd Int. Conf. Concr. Block Paving, Rome,1988
3. Pigment Handbook;Patton,1973
4. The influence of pigments on mix designs for block paving units;Bruce;Proc. 4th Int. Conf. Concrete Block Paving,1992
5. Fresh Concrete Properties and Test;Bartos,1992