Building with Earth by Gernot Minke, , available at Book Depository with free delivery worldwide. Building with Earth Gemot Minke Building with Earth Design and Technology of a Sustainable Architecture Birkhauser – Publishers for Architecture Basel • Berlin. Minke, Gernot Documentation of 30 international earth buildings. The characteristics of the building material earth and its applications in modern architecture.

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However, it should be noted that the buileing mentioned above was silty, whereas this difference is not as large with loams of high clay or sand content.

Vapour passes through walls, and the resistance of the wall material against this action is defined by the “vapour diffusion resistance coefficient. Silt, sand and gravel The properties of silt, sand and gravel are totally different from clay.

Building with Earth : Design and Technology of a Sustainable Architecture

X 0 20 40 60 80 Ribbon rupture lenght cm 2. When the mortar breaks, the weight of the lower brick and the sand-filled container divided by the mortar area gives the adhesive strength.

Bond strength Adhesive or bond strength is important only with mud mortars. In comparison with wet loam techniques see chapter 9the shrinkage ratio of rammed earth is buildimg lower, and strength much higher. Laying earth blocks It is important to shelter earth blocks from rain on site. Inthe effect of material and building shape on interior climate is shown by readings taken from two test buildings of equal volume con- structed in Cairo, Egypt, in Inthe French architect Francois Cointreaux developed a manually operated soil block press.

This product may be extruded, pressed or foamed with hydrogen peroxide H 2 0 2.

Building with Earth : Gernot Minke :

It should be noted that for the humidity balancing effect of building materials, the speed of absorption and desorption processes is more important than the equi- librium moisture content, as explained on p. Another sensible method is to design shrinkage joints that can be closed sepa- rately, and gwrnot avoid uncontrolled shrink- age cracks see chapters 5, p. While the German standard DIN Part buildihg gives a com- plex standard testing method to obtain this, a very simple test to check the bond strength is shown in 2.


This rule, however, does not take into considera- tion the type of clay. It should be noted that these tests were done with optimum water content and with pure clay. Increasing rheumatic pains are observed in cold humid air. Its binding force is then usually insufficient, and it can- not be used as a building material.

The graph shows that silty earth blocks or adobes no.

This is described in greater detail below. This means that by kneading loam in a plastic state, the clay minerals are able to come together in a denser, parallel layered pack- ing, achieving greater buildimg force, and when dry, higher tensile and compressive strength. The dome formwork itself was so designed that it could be lifted not just at the centre, course after course; it also had a guide that automatically adjusted the radius and incli- nation of the formwork 5.

However, spore for- mation may be reactivated if water perme- ates the walls either from the outside through leakage, or from inside through condensation. If the ball flattens only slightly and shows few or no cracks, like the sample on the left, it has a high binding force due to high clay content.

Here, the vertical axis represents weight by per- centage of the total of each grain size, which in turn is plotted on the horizontal axis using a logarithmic scale. Many firms employ this technology in the southwestern USA and in Australia. Therefore, it might be more economical to choose thicker boards of 30 to 45 mm thickness, which need stiff- ening only at intervals of to cm.


Besides free water, there are three different types of water in loam: In concrete technology, we speak of an ideal grain size distribution, “Fuller parabola,” or well-graded mix, given by the expression: In hot dry and temperate climate zones, earth offers numerous advantages over other materials. On the contrary, the decisive parameters are worka- bility and binding force; hence it is recom- mended that loam should not be used with optimum water content as per DINbut instead with a water content somewhat higher than the optimum so derived.

The curve is plotted cumulatively, with each grain size including all the fine components. Looking for beautiful books?

Building with Earth

The chemical composition of expanded perlite is: Theoretically, a weather-resistant coat of paint is sufficient as protection, but in prac- tice, cracks often appear on the surface or are created by mechanical action. Feldspar contains alu- minium oxide, a second metal oxide and silicon dioxide.

As shown in 5. Therefore, the formwork should allow varying lengths of wall to be cast. The proportion of the components is commonly represented on a graph of the type shown in 2.

In Germany, the oldest inhabited house with rammed earth walls dates from 1. This effect is more pro- nounced if a little lime is also added. Sandy soil produces a disagreeable sensation as opposed to silty soil, which gives a less objectionable sensation.