Two-and-a-half times lighter than concrete or clay, it has a higher insulation value than brick, concrete or earth masonry, with moderate thermal mass and a high fire resistance. Timbercrete is a lightweight composite masonry material available in bricks, blocks, panels and pavers.A brick is building material used to make walls, pavements and other elements in masonry construction. Traditionally, the term brick referred to a unit composed of clay, but it is now used to denote any rectangular units laid in mortar.Throughout the construction industry, the common belief is that concrete takes 28 days to cure and reach 100% of its strength. This evolved from a misunderstanding of what curing actually means.A concrete block is primarily used as a building material in the construction of walls. It is sometimes called a concrete masonry unit (CMU). A concrete block is one of several precast concrete products used in construction.Maximum Compressive Strength. In normal concrete work, the maximum compressive strength that can possibly be obtained is generally reckoned to be about 7,500 psi for a 28-day cylinder.Extruded brick, created mechanically, is perfect for any construction project and those where budget is of special concern.Usually identified by its core holes, extruded brick is created by forcing a mixture of clay and water into a die, then cutting the resulting column into shorter units with wires before firing.Concrete blocks are made from cast concrete (e.g. Portland cement and aggregate, usually sand and fine gravel, for high-density blocks). Lower density blocks may use industrial wastes, such as fly ash or bottom ash, as an aggregate. Lightweight blocks can also be produced using autoclaved aerated concrete.Bricks and blocks are components of durable masonry construction in which uniformly shaped individual units are laid in courses with mortar as the bed and binding material. They consist of high mass materials with good compressive strength formed into units that can be lifted and handled by a single worker.