1. ABNT NBR 5733 (1991) High early strength Portland cement - specification, Rio de Janeiro
2. ABNT NBR 11941 (2003) Wood: determination of basic density. 6 p. Rio de Janeiro
3. ABNT NBR 7211 (2009a) Aggregates for concrete: Specification. 3 ed. Rio de Janeiro
4. ABNT NBR 9778 (2009b) Hardened mortar and concrete - determination of water absorption, void index and density. Rio de Janeiro
5. ABNT NBR 12118 (2013) Hollow concrete blocks for concrete masonry Test methods. 6 ed. Rio de Janeiro