Next Generation Compressed Earth Block System
Fabricating large scale Compressed Earth Blocks to create low-cost, sustainable, permanent housing.
CEB technology, utilizing on-site earth, is potentially the ultimate sustainable, low-cost global building system, but is currently held back by old technologies, resulting in a wall of insufficient scale and quality. Redesigning the machine to produce blocks 30 times larger, lift the blocks with inexpensive mini-cranes, creates a 24’’ thick wall that is structurally and thermally superior. Utilizing advances in recycled strengthening additives/coatings enhances the wall’s performance
Known drawbacks of design:
The scaled-up hydraulic block machine requires engineering and prototype production. Test blocks need to be produced incorporating the concrete additives and painted with the proper mineral paints to test strength and adhesion
Status of realization:
Energy, Environment, Habitation, Urbanization
Region of use:
Africa, Asia, Europe, North America, Oceania, South America
Existing Compressed Earth Block machine producers will scale up their existing machine designs to make blocks 30 times larger in volume than current blocks. These blocks, weighing 600 pounds, will be lifted with inexpensive electric winch mini-cranes incorporating scissor grasp clamps. The blocks will be made of on-site earth with recycled additives developed by the concrete industry to strengthen the blocks and create a surface which mineral paints will adhere to. The mineral paints will be formulated to repel rain but simultaneously allow the wall to “breathe” humidity in and out of the wall, thus eliminating the need for expensive and labor intensive plastering.
Compressed Earth Block construction has the potential to become exponentially faster, safer, less costly, more structurally stable, and permanent by scaling up the machine and block, and applying complimentary tools and additives. The goal is to evolve a construction system which, by using on-site earth as its main component, will produce low-rise structures with the lowest possible embodied energy quotient. As a result, the world will have a superior alternative to non-sustainable manufactured building components. The system will be easy to use, employing local labor, often in need of jobs as much as in need of housing.
The technology should be equally applicable and desirable by wealthy developed nations, as well as poor under-developed nations. Experts in the field of Compressed Earth Block estimate that 90% of the world’s soil conditions will be satisfactory to produce blocks on site. The proposed earth wall system will perform well in a full range of climates from hot and arid, to tropical, to cold. Additionally, the walls’ scale will create structures resistant to severe weather conditions and earthquakes. The immense speed of the machine to produce building material (enough blocks to build 250 to 350 small to medium-sized houses per year) will make the machine extremely competitive financially.
Proven and/or potential effects:
Planet friendly housing requires affordability by the poorest, desirability by the most affluent, speed of production, permanence, and the use of sustainable materials and construction practices. Existing practices come up short to meet the urgent need for sustainable housing, from 43.7 million refugees worldwide*, to shifting rural populations, to millions living in urban slums. We believe that the NextGen CEB System can meet the above demands and give institutions such as the United Nations’ agencies and partners (including private contractors) the means to create the next generation of permanent, affordable, sustainable cities. The answer may be as simple as employing the correct tools and training programs while using the earth beneath our feet. *U.N. Human Rights Report
Is the design protected by patent or ip registration?
How has the development of the design been financed hereunto?
Is there a plan for future investments?
Is there in-house competencies to secure market roll out of the design, with regards to investment, distribution, sales, etc.?
DAVID CAGLE & ASSOCIATES
Professional status of designer:
Licensed State of New York
United States of America
City/Country of residence:
New York, USA
Name of company:
DAVID CAGLE & ASSOCIATES