WO2003062168A1

WO2003062168A1 - Insulation concrete

Info

Publication number: WO2003062168A1
Application number: PCT/CA2002/000132
Authority: WO
Inventors: Bela Bill Szoke
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-25
Filing date: 2002-01-25
Publication date: 2003-07-31
Anticipated expiration: 2004-07-25
Also published as: CA2370599A1

Abstract

The insulation concrete containing expanded polystyrene prepuffs, is about 50% less in weight than conventional concrete. The concrete mixture can be poured into forms to produce concrete elements or it can be used to fill cavity blocks at the construction site.

Description

SPECIFICATION Insulation Concrete

This invention relates to building materials.

Over the years the materials and methods of construction, the cost and the time to erect a building has changed considerably.

Most buildings are made by venier construction where brick facing tied to concrete block walls, or brick facing tied at several intervalls to the wood frame of the building.

In apartment complexes, and office buildings the walls made by reinforced concrete. The concrete mix pured into forms. Storage buildings or warehouses generally built by concrete blocks which are reinforced and in some cases are not insulated, because the higher cost of construction. The uninsulated walls readily transmit the outside temperature and require more heating or cooling to keep the temperature necessary to extend the shelf life of various materials, as food items, and keep some chemicals in a stable condition.

The first or immediate inconveniance is the cost to insulate the building. The second is the long term one, the monthly heating or cooling bills, and using up large quantity of energy resourses. The third is that; at the present there are no other alternative materials in low weight available to make changes in methods of construction.

I have concluded that all the inconveniences, can be greatly reduced by introducing a new material the insulation concrete. It can be used in three ways. One is for puring it into forms for reinforced wall construction. The second is to produce insulation concrete blocks. The third is to fill, or grout the cavity blocks, wheather they are made from insulation concrete or concrete.

The new material comprising of expandable polystyrene beads or expanded polystyrene prepuffs, masonry cement, Portland cement, fine aggregates, or other additives to increase the mixture desirable proprties. The insulation blocks production mainly differ by shortening its initial setting time, because only low pressure could be used to compact the block, to avoid crushing the polystyrin globules by excessive pressure.

The specific gravity of the insulation concrete is expected to be between 0.4 and 0.7, depending the percentage amount and the kind of the composing materials, and the application. The bearing capacity of the material will change, although if we are considering arcshes of buildings and bridges built by brick and mortar, have demonstrated the strength developed and sustained in one cross section of the span of the structure, while mortar mix over polystyrin globules in any cross section, therefore I have concluded that; it should adequetly support small structures, walls, or prefabricated wall parts of low and high rise buildings.

Besides the approximate 50% weight advantage of the insulation concrete, there is no seperate insulation is needed, only plastering and stuccoing, or attaching face bricks or other materials to finish the outside surfaces of the building.

Up to date I have made five experiments. The first two was to find out that, is it possible to make a homogenious like mixture by the almost waithless styrofoam globules and the heavy mortar mix when water is added to it. The third experiment was twofold, how much of each material to mix, and the sizes of polystyrene globules which were up to 1/8" Dia. and up to 1/4" Dia. I produced two nominal size blocks 6"x 8". In the fourt experiment on Sept. 2nd one block out of two broke because I used too much force to take out from the mold. The fifth experiment on Sept. 6th I made some correction to the mold and I used 15 parts of polystyrene prepuffs, 7 parts of mortar mix, 2 parts of portland cement, 6 parts of sand and almost 4 parts of water by volume, mixed approx. 5 minutes then pured the mixture and slightly compacted. In the produced two u-shape blocks different sizes of polystirene prepuffs used and I have find that the smaller 1/8" Dia. styrine is more accaptable when only sand is used for aggregate besides the aggregate contained in the ready made mortar mix. In drawings which illustrate embodiments of the invention, Fig.1 is the isometric view of 8"x 8"x16" nominal sized two cavity block, Fig.2 is the isometric view of 8"x 8"x 8" nominal sized one cavity block, Fig.3 is the isometric view of 6"x 8"x16" nominal sized two cavity blocks, Fig.4 is the isometric view of 6"x 8"x 8" nominal sized one cavity blocks, Fig.5 is the isometric view of 8"x 8"x16" nominal, open ended lintel block, Fig.6 is the isometric view of 8^πx 8"x 16" and 6"x 8"x 16" nominal, one end closed lintel block,

Fig.7 is the isometric view of 8"x 8"x 8" and 6"x 8"x 8" nominal, one end closed lintel block, Fig.8 is the plan view of Fig.1 , Fig.9 is the plan view of Fig.2, Fig.10 is the plan view of Fig.3, Fig.11 is the plan view of Fig.4,

Fig.12 is the plan view of 8"x 8"x16"open ended lintel block of Fig.5, Fig.13 is the plan view of 6"x 8"x16"open ended lintel block of Fig.5, Fig.14 is the plan view of 8"x 8"x16" and 6"x 8"x16" one end closed lintel block of Fig.6,

Fig.15 is the plan view of 8"x 8"x 8" and 6"x 8"x 8" one end closed half lintel block of Fig.7,

Fig.16 is an elevation view showing a lintel for an opening, made by three rows of open ended lintel blocks 1, shown in Fig.5 and 12, supported by cavity blocks 2, shown in Fig.1 , and 8, and 3 shown in Fig.2 and 9. Also showing the vertical 4, and horizontal reinforcing bars 5. Number 6 shown in Fig.6 and 14, 7 shown in Fig.2 and 9, and 8 in Fig.7 and 15,

Fig.17 is a cross section at A-A in Fig.16 of the lintel. 1 is one of the horizontal reinforcing steel bar end, 2 is the long, and 3 is the short connecting bars, 4 is the concrete and 5 is the horizontal bar at every three rows of blocks,

Fig.18 showing the cross section of one and two cavity block recess for horizintal reinforcing bar, and the tapered cavity which is between 3 and 10 degree.

Claims

CLAIMSThe embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. The insulation concrete comprising of expanded polystyrine prepuffs, mortar mix, sand and other fine aggregates, cement, commercially available addititives such as lime to increase the mixture initial setting time after water is added to it, mixed together then pured into forms for reinforced insulation concrete, or fill cavity blocks at the construction site.

2. The insulation concrete as described in claim 1, in which more cement, or accelerator is used to decrease the insulation concrete initial setting time, and low compacting pressure is used to avoid crushing the polystyrene globules at the production of insulation concrete blocks.

3. Nominal sized 8"x 8"x16" two cavity block made with a recess from the top surface for horizontal reinforcing bar.

4. Nominal sized 8"x 8"x 8" one cavity block made with a recess from the top surface for horizontal reinforcing bar.

5. Nominal sized 6"x 8"x16" two cavity block made with a recess from the top surface for horizontal reinforcing bar.

6. Nominal sized 6"x 8"x 8" one cavity block made with a recess from the top surface for horizontal reinforcing bar.

7. Nominal sized 8"x 8"x16" U-shaped block recessed at both ends at the bottom thickness of the block.

8. Nominal sized 6"x 8"x16" U-shaped block recessed at both ends at the bottom thickness of the block.

9. Nominal sized 8"x 8"x16" U-shaped block recessed at one end of the block bottom thickness, and enclosed at the other end in full height of the block.

10. Nominal sized 6"x 8"x16" U-shaped block recessed at one end of the block bottom thickness, and enclosed at the other end in full height of the block.

11. Nominal sized 8"x 8"x 8" U-shaped block recessed at one end of the block bottom thickness, and at the other end enclosed in full height of the block.

12. Nominal sized 6"x 8"x 8" U-shaped block recessed at one end of the block bottom thickness, and at the other end enclosed in full height of the block.