The story of a house . to the excavations, where they ram it in witli PAULS COURSE OF PRACTICAL CONSTRUCTION. 6- wooden beaters. If the lime is good and the concrete wellmade, a real rock is thus composed, which resembles naturalconglomerates, or pudding-stone. The water with difficultypenetrates these concretes when they have taken consistency,and thus you avoid the subjacent infiltrations which occurin cellars made in very wet soils. If the wall you see here had been built with mortar madewith hydraulic lime, it would be intact, and its junctionswould be as hard as the stone itself. You will
The story of a house . to the excavations, where they ram it in witli PAULS COURSE OF PRACTICAL CONSTRUCTION. 6- wooden beaters. If the lime is good and the concrete wellmade, a real rock is thus composed, which resembles naturalconglomerates, or pudding-stone. The water with difficultypenetrates these concretes when they have taken consistency,and thus you avoid the subjacent infiltrations which occurin cellars made in very wet soils. If the wall you see here had been built with mortar madewith hydraulic lime, it would be intact, and its junctionswould be as hard as the stone itself. You will easily under-stand that, when the water has little by little diluted and lique-fied the mortar of the layers and that joined to the base of awall, the stones of which it is composed settle, and so all therest of the building suffers. This is why the front of thishouse, looking upon the court, betrays a number of fissures,which are repaired from time to time, but without, of course,getting rid of the cause of the Fig. 9. You see that the cellar wall which receives the vault isvery thick, much thicker than the ground-floor wall. Thelatter is only sixty centimetres in thickness, whilst this wall 64 THE STORY OF A HOUSE. is nearly a metre. This additional thickness is given to theinterior mainly to receive what we call the summer of thevault, A sketch will illustrate for you the reason of thisarrangement (Fig. 9). Let A be the thickness of the ground-floor wall of a house, which we put at fifty centimetres; ifthere are to be cellars under this ground-floor, the interiorsoil being at B and the exterior soil at C, it will be proper,in the first place, to indicate the interior soil by a projection,a greater thickness being given to this wall on the outerside; let this be five centimetres. At A the wall will, there-fore, be fifty-five centimetres. Your vault being traced at D}you must reserve at E a resting-place of at least twentycentimetres, to receive the first keystones of
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectarchitecturedomestic
