DE1646520A1 - Component and process for its manufacture - Google Patents

Description

Dr. F. Zumsfoin - Dr. E. Assmann

Dr. R. Koenigsberger

Dipl. Phys. R. Holzhauer

Patent attorneys Monks 2, Bräuhaussfrafe * 4 / III

Favre & Cie. A.-G., Zurich (Switzerland)

Component and process for its manufacture

The invention relates to a component which at least partially consists of layers consisting of at least two materials of different density, which are hydraulically set, and a method for producing the component.

109836/0237

~ 2 -

As is well known. Adhesive building materials made of lightweight concrete dio Mach. * share ail »that iliro surface: mechanical lioa

icndon offers resistance, allows penetration of and / or on the other hand such iiauteile su low pressure and lJio £ e: 4U £ i * e £ jti £; keifcen have, do as load-bearing ^ lenonte voriiundot v / orden :: u itüiuicn · Ba proud dcsliali) soit lanjor; » das Bcdürnia, Lc iciitb ο tonbaut oil e With, xogon AnsriiTe from the outside

; Gn bcliicliton, to provide and / or Lau «oilon icraft- and to pre-bind.

Ss were already Vorauclio to Vorbindun ^ av; oior vorochiodenor Matorlalicri, of which cinc3 is a Loicut-Ijeton _c bottomiorurr.oii, whereby one oiner3oits the connection ßölansoiiderf iilc ^ ionte separately from it, connected that abcuittoln later by means of "Iilcbandcuittoln Ver £ * aliren was very dear, because ocli lccinc broke alliance could be achieved "

On the other hand was aucli vorouclit, on a vorjefortistas Loichtbetonolc; ^ ont oino Prischbotonsohicht to apply These attempts also fail tone

The i3Chwiri £ koiten _t inabcaondorc βϊ · οΰΓθΓ..ια £ ΐ £ θ liautoile auo lightweight concrete with messenger or I-ttlrtelüberzuson with a composition different from lightweight concrete and from »

109836/0237

BATH ORIGINAL

volcixendcn. VGati & zcttealßcxischZittcn to provide »consisted blslicr under aiidcrc; .i in doing.0 a uiicenücend © connection eii de :; srcei buy components »·

this i-rfalii-uaiijon luat wan cJarvn a aridoron * .. 'C £ Isoaclisritton "izidctt naa in oixicja ArhottBp ^ ans Sclxwor- and Loicli.wbotcr4 £ 5chiciitcn cuaanii: ion £; took off and dioeo liydrothcr" nal ζιχϊλ Afctindon and Urliilrton »Ea handolt sicli ciiibci uin oirisn Sclufor'uotcn odor around a heavy—

issc »die in der For.a alt a Loichtlit übercrJac'cs vurdo, ^« D »curcli oino in übliclior U * oit; c cßöcliiii ^ .itö liallcbatoiiaciiicäi;, and dio then" ansclilicüc ^ d ± ά bokanntor Uo is ο in the autoclave ciit tJi

. \ nctclle of Lciciitknllcbeton as Leichtecliiciit iot also oino Lcicktocliiciit from Dliilitoii or · Uliiliscliiöfer get diü iai.t a ;; ""2'c:.:ciitlei; a is bound, liack parto, the practice is "Diooe Eombinationefcauatoffo dcia vorsclxicdoncn Ausdclinun ^ aJcooiTiaicntcn

BAD ORIGINAL 109 836/0237

of heavy ⁴ - and lightweight concrete, especially due to the different expansion when x-rayed * carbonation, etc.

The purpose of the invention is to diminish power or · £ janz · Accordingly, the subject of Inventionι

I. a component, which at least partially consists of at least two of at least similar, hydraulically set Materials of different density consists of existing layers, which is characterized is that the layers are hydrothermally connected to one another without external binders; and

II.-a process for the production of such components, which characterized in that at least two layers of at least similar hydraulically setting layers are used Brings materials of different density into one form, in this at least partially solidifies and then lets them harden together hydrothermally.

The layers can be made of the same material, with different tree weights, for example through suitable grading and / or foaming is achieved. The layers preferably contain silicates or quartz.

109836/0237 _BÄD

The heavier layer can be reinforced with fiber from natural or artificial, inorganic or organic fibers may be provided.

It is characteristic of the present component that " on the connection of the two layers of material besides that each hydraulic contained in the materials Binders no external binders are required *

Ber component can zwoi and mohrschichtig eoin _t wherein the one a layer need not completely cover one another · The configuration of the component may thus far · extent the structural requirements be adapted ·

Depending on the use of the component, a thin (2-4 cm) layer of hard concrete can be provided, for example, to improve the properties of the lightweight concrete, which can be mixed, to provide a weatherbeatlindie © and against mechanical stress, resistant outer skin * On the other hand, the concrete layer can take on greater strengths and "serve" as a load-bearing element, especially with steel reinforcement, while the lightbulb layer gives the component good insulation properties.

BATH ORIGINAL

109836/0237

The layer of lightweight concrete is not limited to certain types, but the most varied types of concrete • such as concrete types made of porous lavasc.nlaeke, garbage slag, blast furnace slag and pumice, brick chippings,

.-. Debris chippings, expanded clay, expanded slate and expanded glimraer, Äotonarton znlt organic aggregates (wood concrete) » ■ also natural pumice, einkorn, synthoporite, sintered clay and the like have been used · But it can also 'Sand-lime brick or sand-lime brick-like materials' «1« Layers serve · · '*'

The structure of the individual types of boton is sufficient '. known and need β omit not Veiter explained below verden "characteristic, however, is that the individual layers au" equivalent material composed • ind whose Rauiagewicht different 1st and where · build the AbStUl ¹ UtIg of Rauiugowlehtea by suitable graining and / or by In contrast, the foam coating is known in multi-layer composite oil cores, in which the liner consists of natural sand-lime stone material or lime clay or of small-grain bleached clay. There are • in ancestors in which the light and heavy layers consist of a similar material, differently from the matorial structure, where the swelling layer is covered by sediments, where the light layer is also covered. The individual matorial layers can be sold in themselves and / pdor the layers have reinforcements connecting one another

1098 3 6/0237 - ^ BAD original

The component according to the invention means in particular in Related to the production and processing of Lightweight concrete is a decisive step forward since e · it is now possible »to design loan parts in such a way» that they fill ala as a load-bearing component «' can be used. In addition, calibrate eolcho Oautoilo ve it going factory like this gate · manufacture so that you · further processing on dom Bau » for example in industrial and residential buildings, is reduced to a minimum.

The orfindungoeomUsse component is twockmüßig according to dom «Bonfall · Process forming the subject of the invention manufactured. '. '

Although ·· is possible »da · oino Kohicht forming · Preventive materials. Intention to put concrete "in solidified" but not hardened in one form, it is more appropriate to use both "materials . Process ssu in a freshly prepared state · ·

It is recommended that the specifically heavier \

Layer resulting · Mp * ial to be introduced first in «in · Form and then with the specifically light-weight Layer resulting material to overlay · Depending on the type of material used, one can use one or compress both layers »whereby it is expedient to put the 'lower in front of the overgrown with the second material'

109836/0237 BAp

- ö. ·, 16Λ6520

prediolitot · Particularly suitable for compacting Vibration compaction, for example, in the form of a RÜttoltiflches or einoo Oborflachonrüttiers.

It may "wake up" the material layer at first Let room temperature solidify so that you can get the

.The component can be stripped off before the hydrothermal hardening »which may improve the effect of the hydrothermal hardening.

The hydrothermal hardening can take place, for example, by means of warm water ₍ low-tension wet steam, high humidity air or high-tension goGtittictom steam., -

Preferably one leads dio hydrothennale, Erhärttuiß; at temperatures of mindeeton »100 0 $ advantageously over 175 ° C, and increased pressure through. This is what is known as steam pressure. over 175 ° C takes place in an autoclave and is-inobesondore for materials with silicate odor eililuithalfciecn additions goei / jnotg because at Toniporaturon of over 175 ° 0 a chemical reaction between the hydraulic binders (Portland cement odor ICaIk) and the silicate base toilet is carried out. . ,. -

The hydrothermal "in3bosondoro steam pressure hUrtoton Uau" divide zeiclinen eioh by an extraordinarily fferingos Shrinkage, great strength, and a very good bond are selected from the boidon torial schiohten.

109836/0237 - ^ '

BATH ORIGINAL

The ancestor according to the invention enables "layered components in a simple and inexpensive way in" isiir work "*. flawlessly produced «·

The orfindungsgomäßo component and. the inventiveness. · Procedures are explained in more detail using an example

According to the present method, an approximately 20 cm thick reinforced concrete platform with a 2.5 cm strong facing concrete, also coated .

The facing concrete was made from 20 kg of sand 0/1 (or other silicate leveling materials), 10 kg of gravel of grain size 3/6 ^and 15 kg of gravel of grain size 6/9 with 8 kg of cement between very moist and slightly plastic and placed in one with formwork oil evenly spread out form in a layer height of 2.5 cm. After inserting a reinforcement grid, the facing concrete was carefully compacted using a surface vibrator.

The facing concrete was then immediately mixed with a lightweight concrete mix layered, had the following composition:

Cement 55 wt- ^

Sand 0/1 '65 % by weight

(or other silicate compensating substances)

In addition, 0.08% by weight of 8% aluminum powder was added to the mixture as a blowing agent before it was cast.

BATH ORIGINAL

109836/0237

- ίο -

The component "rstarron" was then left after about 12 ' Hours the component was placed in the autoclave

t The component was -In autoclave old water vapor at fine temperature bia about 200 ⁰ C and an associated pressure of approximately 16 ATU hardened · After several hours DampfhUrton at full temperature and full pressure was again relaxes slowly and cooled · could hours After about 16 of component can be removed from the autoclave '

t. "■■".
The choice of. Basic materials including any auxiliary materials and the manufacturing method can vary depending on the properties of the basic materials and the required requirements

ι '

The component produced in this way had a solid front collar ■ between the facing concrete and the aerated concrete · jUolastungQ ~ Attempts were able to make a bond between two layers ν not to be destroyed, but rather led to the breakage

, in the less resistant lightweight concrete layer »

109836/0237 B ^AD ORIGINAL

Claims (11)

Claims 1. Component, which is at least partially made of at least two of similar, hydraulically set materials existing layers of different density, characterized, that the layers are foreign are hydrothermally connected to one another without binding agents. 2. Component according to claim 1, characterized in that the material of a layer is a single-grain lightweight concrete. J. Component according to claim 1 or 2, characterized in that that the material of both layers of sand-lime brick or a sand-lime brick-like material 1st. 4. Component according to one of claims 1 to 3, characterized in that that the material of both layers is a concrete or mortar. ■ 5. Component according to claim 4, characterized in that the concrete is reinforced with natural or artificial, inorganic or organic fibers, e.g. asbestos. 109836/023 7 "^ ^INSPECTC0 - ld - 6. A method for producing components according to any one of claims 1 to 5 »characterized in that at least introduces two layers of similar, hydraulically setting materials of different density into a mold, at least partially solidify in this and then harden them together hydrothermally. 7 =. Process according to Claim 6, characterized in that the layer which results in the specifically heavier layer is first used Material and then the material that results in the specific lighter layer is introduced into the mold. 8. The method according to any one of claims 6 or 7> characterized in that one or both layers of material are compacted. 9. The method according to claim 8, characterized in that the first layer is first compacted and then optionally the second. 10. The method according to any one of claims 6 to 9, characterized in that that the material layers are initially allowed to solidify at room temperature. 109836 / Π73 7 16Λ6520. 11. The method according to any one of claims 1 to 10, characterized in, that the components are switched off before hydrothermal hardening. ORIGINAL INSPECTED 109836/0237