Method for constructing a building using bricks connected using dry joints

a technology of dry joints and bricks, applied in the field of construction, can solve the problems of limited use of building professionals, high degree of technicality and difficult implementation, and marginal savings, and achieve the effect of improving the use of plant fibers

Inactive Publication Date: 2013-08-15
VICAT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0010]The invention aims to improve the use of plant fibers (in particular hemp) in construction, by proposing an implementation that is both simple an

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,

Method used

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  • Method for constructing a building using bricks connected using dry joints
  • Method for constructing a building using bricks connected using dry joints
  • Method for constructing a building using bricks connected using dry joints

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Embodiment Construction

[0045]FIGS. 1 to 12 show four different types of prefabricated hemp concrete elementary bricks. The concrete is prepared from hemp or hemp chaff aggregate, which is the fragmented inner part of the hemp stalk. The hemp chaff used meets the recommendations of hemp producers for use in construction, cf. the aforementioned volume Construire en Chanvre. The density of the dry hemp chaff used is approximately 100 kg / m3 bulked (i.e. not tamped). The binder used may comprise non-hydraulic or hydraulic lime (standard NF EN 459-1 to 3), potentially with added pozzolana (standard NF P 18-308), but in the case at hand is preferable to use pure non-hydraulic lime. The composition also comprises quick-setting cement and mixing water (meeting the stipulations of standard NF EN 1008).

[0046]The proportions by volume of the preferred composition are as follows: hemp chaff 73%; non-hydraulic lime 8%; quick-setting cement 4%; water 15%, i.e., for 100 l (10 kg) of hemp chaff, approximately 11 l of non-...

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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...

Claims

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Application Information

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IPC IPC(8): E04B2/18
CPCC04B28/10C04B28/12E04B2/16E04B2/18E04B2002/0206E04B2/24C04B18/248Y02W30/91
Inventor BAUMER, DAMIEN
Owner VICAT
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