1.6
Classification des briques
Les briques, un élément fondamental de la construction, sont classées en fonction de leur application et de leurs caractéristiques structurelles en pl…
Les briques utilisées dans la construction sont généralement classées en briques de parement, briques de construction et briques creuses.
Les briques de parement, également appelées briques de parement, sont conçues à des fins structurelles et esthétiques où l’apparence de la brique est essentielle.
Les briques de construction sont utilisées dans des zones telles que des parties d’un mur de maçonnerie qui sont cachées derrière des briques de parement.
Les briques de parement et de construction sont définies comme des unités solides ; celles-ci peuvent être vraiment solides, noyautées ou grenouilles. La surface de la brique, qui résiste à la charge, doit être solide à au moins 75 %.
Les briques creuses peuvent avoir jusqu’à 60 % de leur volume vide et sont plus légères que les briques pleines.
Ces vides permettent l’enrobage et le jointoiement de barres d’armature lorsqu’il est nécessaire d’utiliser de la maçonnerie en brique armée.
De plus, il existe des briques de pavage conçues pour résister à l’abrasion et survivre aux cycles de gel-dégel, au cours desquels l’eau qui s’infiltre dans les briques ne cause pas de dommages au gel.
Il existe également des briques réfractaires, qui sont utilisées pour doubler les cheminées installées à l’aide de très fines couches de mortier d’argile réfractaire.
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Q1: What are the main types of bricks used in construction?
Bricks are classified into five main types based on their application: facing bricks for structural and aesthetic purposes, building bricks for hidden wall sections, hollow bricks for lighter construction, paving bricks for durable surfaces, and firebricks for high-temperature environments like fireplaces. Each type serves distinct functional and structural roles in construction projects.
Q2: How do facing bricks differ from building bricks?
Facing bricks, also called face bricks, are designed for both structural support and visual appeal, making their appearance critical. Building bricks are typically used in concealed sections of masonry walls, such as behind facing bricks, where appearance is not a priority. Both are solid units, though their intended visibility distinguishes their application.
Q3: What defines a solid brick versus a hollow brick?
Solid bricks, including facing and building bricks, must have at least 75 percent of their load-bearing surface as solid material, though they can be fully solid, cored, or frogged. Hollow bricks contain up to 60 percent void space, making them lighter. These voids in hollow bricks allow for embedding and grouting of reinforcement bars in reinforced brick masonry applications.
Q4: Why are paving bricks designed differently from other brick types?
Paving bricks are engineered to withstand abrasion and survive freeze-thaw cycles, where water infiltration does not cause damage upon freezing. This specialized design ensures durability in outdoor applications subjected to heavy foot traffic and environmental stress. Their resistance to both mechanical wear and temperature fluctuations makes them ideal for exterior surfaces.
Q5: What makes firebricks suitable for fireplace applications?
Firebricks are specialized units designed to withstand extreme heat in high-temperature environments like fireplaces. They are installed using very thin layers of fireclay mortar, which provides superior heat resistance compared to standard mortar. This combination allows firebricks to maintain structural integrity under sustained thermal stress.
Q6: How do the voids in hollow bricks benefit masonry construction?
Hollow bricks reduce overall weight while their void spaces facilitate the insertion and grouting of reinforcement bars, enhancing structural integrity. With up to 60 percent of their volume as void space, hollow bricks provide a lighter alternative to solid units without sacrificing strength when properly reinforced, making them economical for larger structures.
Q7: What is the significance of the 75 percent solid requirement for brick surfaces?
The 75 percent solid requirement for load-bearing surfaces ensures that solid bricks, whether fully solid, cored, or frogged, maintain adequate structural capacity to support building loads. This minimum threshold balances material efficiency with structural reliability, allowing manufacturers to create cored or frogged bricks that reduce weight while preserving load-bearing capability.