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Two-component mortar and its application

A mortar slurry, two-component technology, used in the field of components, to achieve good curing, high load values, avoid marking the effect of peroxide content

Active Publication Date: 2015-08-26
HILTI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] These conventional two-component mortars for chemically fixing anchoring elements in boreholes are disadvantageous in that they must contain significant amounts of peroxides of 0.5% by weight and more, which are cost-effective. Problematic because products containing peroxides must be labeled as allergenic from a peroxide concentration of 1% (dibenzoyl peroxide)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Embodiment 1~3 and comparative example

[0031] Curing agent component A for Comparative Example and Examples 1-3 was first prepared by mixing the ingredients given in Table I below. Curing agent component B used in Comparative Examples and Examples 1-3 was prepared accordingly. For this, the components were first premixed manually in a 1-liter plastic beaker, then mixed in a dissolver during 10 minutes (4500 min -1 ; <100 mbar).

[0032] Table I

[0033]

[0034] After separately preparing resin component A or curing agent component B, they are mixed in a static mixer in a volume ratio of 3:1 or 5:1 as given in Table II below, and introduced into the concrete beforehand. Among the prepared drilled holes with a diameter of 14mm. The gel times of the examples were in the range of 5-6 minutes at 25°C.

[0035] The bolt M12 is then introduced into the borehole with a bonding depth of 72 mm, and the pull-out force of the bolt is determined after a curing ti...

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PUM

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Abstract

A description is given of a two-component mortar composition having a curable resin component having a content of at least one free-radically polymerizable resin, fillers, accelerators, stabilizers and optionally further conventional mortar constituents and a hardener component which is arranged separately therefrom to inhibit reaction and has a content of at least one peroxide for chemical fastening of anchoring means in boreholes, which is characterized in that the resin component contains from 0.1 to 0.5% by weight of at least one accelerator and from 0.003 to 0.03% by weight of at least one stabilizer and the hardener component contains from 0.1 to 0.35% by weight of organic peroxide, in each case based on the total weight of resin component and hardener component, and also the use of this two-component mortar composition for chemical fastening of anchoring means in boreholes.

Description

technical field [0001] The present invention relates to a two-component mortar paste for chemically fixing an anchoring member in a borehole, which has a curable resin component and a curing agent component arranged separately therefrom to inhibit the reaction, the The resin component contains at least one free radical polymerizable resin, filler, accelerator, stabilizer and optionally other common mortar components, and the curing agent component contains at least one peroxide, and relates to the The above-mentioned mortar is used to chemically fix anchoring elements in boreholes. Background technique [0002] Two-component mortars of this type are used, for example, as injection mortars for chemically anchoring (preferably) metal elements on (preferably) mineral substrates, such as in particular buildings made of brick, concrete or natural stone middle. In this case, the corresponding boreholes for fastening the anchor elements are first introduced into the mineral base,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/06C04B26/16C04B28/04C04B28/06E21D20/02F16B13/14
CPCC09K8/467C04B28/06C04B2111/00715C04B28/04C04B26/06F16B13/142C04B26/16C04B7/32C04B14/06C04B14/066C04B14/10C04B14/24C04B14/368C04B22/068C04B24/00C04B24/023C04B24/121C04B24/287C04B40/065C04B7/02C04B20/0096C04B40/0666C04B24/2641C04B24/282C04B2103/10C04B2103/20
Inventor T·伯格尔
Owner HILTI AG