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Insulating mineral foam

A foam and mineral technology, applied in solid waste management, sustainable waste treatment, building components, etc., can solve the problem of not providing enough stable mineral foam, achieve low density, good stability, and reduce thermal conductivity.

Inactive Publication Date: 2014-12-10
HOLCIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, known methods do not provide sufficiently stable mineral foams

Method used

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  • Insulating mineral foam
  • Insulating mineral foam
  • Insulating mineral foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0199] laser particle size method

[0200] In this specification including the appended claims, particle size distribution and particle size are measured using a Malvern MS2000 laser particle sizer. Measurements are carried out in ethanol. The light source consists of a red He-Ne laser (632nm) and a blue diode (466nm). The optical model is Mie optical model, and the calculation matrix is ​​polydisperse.

[0201] The device was checked against a standard of known particle size distribution (Sibelco C10 silica) prior to each work session.

[0202] The measurements were carried out with the following parameters: pump speed 2300 rpm, stirrer speed 800 rpm. Samples were introduced to produce a darkness between 10 and 20%. Measurements are taken after the darkness has stabilized. First apply ultrasound at 80% for 1 min to ensure deagglomeration of the sample. After about 30s (for cleaning up possible air bubbles), the test is performed for 15s (15000 analysis images). Withou...

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Abstract

The present invention relates to a process for production of insulating mineral foams produced from a slurry of cement and an aqueous foam. The invention also relates to the mineral foam obtained by this process, its uses and elements of construction produced with this mineral foam.

Description

technical field [0001] The invention relates to a process for the production of thermally insulating mineral foams with a cementitious base, to the mineral foams thus obtained, and to construction elements comprising these foams. Background technique [0002] In general, mineral foam is very beneficial for many applications due to its insulating properties. Mineral foam is a material in foam form. This material is generally lighter than conventional concrete because of its pores and empty spaces. It is also known as cement foam. These pores or empty spaces are created due to the presence of air in the mineral foam, which can be in the form of air bubbles. use 1m 3 The raw material can produce about 5m 3 The finished product, that is, a material in which 20% is material and 80% is air (this pair has about 400kg / m 3 density of the component is valid). [0003] When mineral foam is poured into relatively high components, the mineral foam may collapse due to lack of stabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B28/04C04B38/10
CPCC04B28/065C04B28/04C04B28/14C04B38/10C04B28/02Y02W30/91C04B14/06C04B14/064C04B14/22C04B14/24C04B14/28C04B14/365C04B18/08C04B18/141C04B18/146C04B22/147C04B40/0028C04B2103/10C04B2103/22C04B2103/30C04B2103/302C04B2103/32C04B2103/40C04B2103/44C04B7/02C04B7/32C04B20/008C04B2103/0008C04B28/06C04B38/0051C04B38/0054C04B38/106C04B40/00C04B11/005C04B2111/40E04B1/76
Inventor S·贝尔纳I·哈维雷S·迪尚德S·萨比奥C·罗伊
Owner HOLCIM
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