WO1982000678A1

WO1982000678A1 - A method for making a construction from stones of concrete

Info

Publication number: WO1982000678A1
Application number: PCT/NO1981/000034
Authority: WO
Inventors: As Selvaagbygg
Original assignee: Thorsnes O
Priority date: 1980-08-21
Filing date: 1981-08-17
Publication date: 1982-03-04
Also published as: NO147218B; IL63606A0; GR75739B; ES505356A0; PT73552B; IT1145928B; NO147218C; IT8115196V0; NO811715L; PT73552A; ES8304249A1; IT8112610A0; AU7530381A

Abstract

Stones of concrete consisting of foil bags (2) filled with concrete (1) are arranged in a required mutual relationship, whereafter exposed foil (2') is removed under the action (9) of e.g. heat, radiation, chemicals or the like after hardening of the concrete. Use in constructing road surfaces, supporting walls or the like.

Description

A METHOD FOR MAKING A CONSTRUCTION FROM STONES OF CONCRETE

The present invention relates to the making of a construction consisting of stones of concrete.

It is previously known to cover roads with hardened stones of concrete or to cast road surfaces from fresh concrete which is finished or worked on subsequent to the casting operation. The first method is work intensive and each stone must be stabilized in sand or other finishing material. The second method yields problems with respect to positioning of joints and finishing -procedure , and is subjected to arbitrary hard¬ ening conditions dependent on the climate, and to random crac¬ king.

It is further known to make supporting walls or other masonry, e.g. foundations, from blocks and to reinforce these individual ly. This is partly time consuming and requires that one mixes concrete when the blocks are laid out. Further, the known solution requires that a large number of. blocks must be trans¬ ported to the building site in advance and there handled . manually.

The present invention aims to remedy these disadvantages in simple and cheap manner, during the laying out . , to use non-hardened or soft stones of concrete- which upon the laying form into shape completely according to their support and adjacent stones without particular adaption or use of jointing material.

This is obtained according to the invention in that fresh concrete, or dry-mixed concrete being subsequently sup¬ plied with water or vapour, is arranged in bags or tubes of plastic foil, paper or the like, that the bags thereafter are arranged in required mutual relationship in at least one plane, and that the exposed portion of the foil is removed under the action of e.g. heat, radiation, chemicals or the like after the concrete has hardened.

The invention is now to be further described with reference to the enclosed drawings.

Fig. 1 is an example of a foil bag filled with concretes.

Fig. 2 is a cross section through the bag according to fig. 1.

Fig. 3 illustrates bags filled with concrete and laid in bond, e.g. as a road surface.

Fig. 4 illustrates in cross section bags filled with concrete with the exposed portion of the bags removed.

Fig. 5 illustrates the bag used to make a supporting wall.

Fig. 6 illustrates the bag used to make a conventional vertical masonry.

- The concrete filled bags 2 or tubes may be of varying size and they may be laid in almost any bond, e.g. like street stones, as indicated by the bags 3 - 7 in fig. 3. Area, thickness and form is dependent on the shape of the bag and degree of filling

The bag 2 protects the fresh concrete as regards climate and against the supporting earth or stone masses 8. The bag will thus prevent the concrete from drying andwash-out, respectively during the hardening period. The adaptibility at curves, corne and edges will be a maximum, since the final closure of the bag if desired may be carried out when it is formed and put into position. Alternatively, the bag is formable and flexible in such a manner that irregularities may easily be adjusted for.

QMPI In fig. 5 there is shown a utilization of the invention where the bags 2 have been laid as a supporting wall against e.g. ear- masses 11. In order to increase the strength of the support^¬ ing wall,there are immediately after the positioning of the bag pushed one or a plurality of reinforcingrods 10 down through the bags. Thereby, the bags are interlocked and a unitary construction is obtained. Fig. 6 illustrates the solution of fig. 5 used on a conventional straight masonry. By forcing the reinforcing rods 10 down through the stack of bags while the concrete is still non-hardened, it is achieved that the masonry is provided with the required rigidity. Horizontal reinforce¬ ment may be provided in a similar fashion.

When the concrete has hardened, the exposed unwanted part 2' of the bags 2 may be easily and quickly removed by heat from a flame-thrower 9 or the like. Alternatively one may visualize the foil being removed under the action of radiation or through the use of chemicals.

Claims

1. A method for making a construction consisting of stones of concrete, characterized in that fresh concrete,or dry-mixed concrete being subsequently supplied with water or vapour, is arranged in bags or tubes of plastic foil, paper or the like, that the bags thereafter are arranged in required mutual rela¬ tionship in at least one plane, and that the exposed part of the foil is removed under the action of e.g. heat, radiation, chemicals or -the like after the concrete has hardened.

2. A method according to claim 1, characterized in that a plurality of reinforcement rods (1) are introduced into the construction by forcing the rods through the bags of concrete prior to the hardening of the concrete.