Method for constructing a building using bricks connected using dry joints

Abstract

The invention relates to a brick (1) made from a material comprising vegetable fibres agglomerated using a binder (such as hemp concrete), said brick being provided with a groove (9, 11) and a tongue (5, 7) allowing the dry-joint connection of bricks. The invention also relates to a method for constructing a building using such bricks.

Description

TECHNICAL FIELD[0001]The invention relates to the field of construction. More specifically, it relates to a method for making a building from prefabricated and interlocking elementary bricks, made from a material comprising plant fibers (hemp, straw, flax, etc.) agglomerated using a binder (in particular dirt, non-hydraulic or hydraulic lime).BRIEF DESCRIPTION OF RELATED ART[0002]The use of plant fibers to construct buildings, and more specifically to produce walls and partitions, has been known for some time. Examples include laterite mud, made up of a matrix of clay (or more generally dirt) and agglomerated plant fibers (in particular straw).[0003]Hemp fibers have also been used in construction. One traditional technique consists of preparing a concrete (commonly, although wrongly, called hemp “concrete”) in situ from a plant aggregate (hemp chaff) and a binder (non-hydraulic or hydraulic lime), and filling a wooden framework wall using such a concrete.[0004]Hemp concrete may also...

AI Technical Summary

Benefits of technology

The invention proposes a simple and fast way to use plant fibers (especially hemp) in construction. It can be used to equal or even surpass traditional techniques like terra cotta bricks or cement concrete quarry stones.

Problems solved by technology

While the ordinary techniques, today offered by several companies (including the company BCB, which offers hemp concrete under the Tradical registered trademark), may be deemed satisfactory in terms of mechanical, acoustic and thermal performance (greater than or equal to that of ordinary quarry stone constructions), they are nevertheless flawed by a high degree of technicality and difficult implementation, which limit their use to building professionals.

However, the savings are marginal, since the insertion, then sealing of many posts in the shafts of the blocks are lengthy and tedious operations, which also require the in situ preparation of a large quantity of binder.

Due to the aforementioned drawbacks of the known techniques, including the most recent, the share of hemp concrete in construction is progressing little if at all, traditional quarry stone construction continuing to represent the vast majority of the market.

Images