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Geopolymer cement and use thereof

A geopolymer cement, cement technology, applied in the field of structure and construction, can solve the problems of increasing the amount of water, reducing plasticity, and short cement hardening time

Inactive Publication Date: 2012-07-18
法国运输规划和运输网科学技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, the addition of these solutions helps to increase the water present in the geopolymer cement, which can lead to a decrease in the mechanical strength of the cement thus formed
Conversely, reducing the amount of activator solution used and thus the amount of water present in the mixture too drastically, leads to a reduction in plasticity and thus workability, resulting in a very short hardening time of the cement, which is often not compatible with the intended use. compatible

Method used

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  • Geopolymer cement and use thereof
  • Geopolymer cement and use thereof

Examples

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Embodiment Construction

[0065] The present invention may be better understood from the following examples, which are provided for illustration only.

[0066] In these examples, the following components were used:

[0067] - Metakaolin: sold by AGS Minéraux under the name Argical-M 1200S (powder);

[0068] - Fly Ash: Sold by Surchiste under the name Siliconoline products (powder);

[0069] - Kaolin: sold by AGS Minéraux under the name Argirec B24 (powder);

[0070] - Blast Furnace Slag: a product (powder) sold by Slag under the name Crushed Slag 0 / 4;

[0071] -Bentonite: The Société the product sold under the name Impersol (powder) by des Bentonites et Dérivés;

[0072] - Aramid fiber: sold by Teijin under the name Technora Synthetic organic fibers of T321;

[0073] - Aqueous solution of sodium silicate: the following solution is sold from VWR under the name sodium silicate solution TECHNICAL (SiO 2 :Na 2 O weight ratio = 3.25) and solid sodium hydroxide (97%) Preparation:

[0074] o Solu...

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Abstract

The present invention relates to a novel type of non-corrosive geopolymer cement in which said cement comprises a metakaolin or a mixture of metakaolin and of an aluminosilicate that is not thermally activated, in a weight ratio within the range extending from around 40:60 to around 80:20, and an alkaline silicate solution having an M2O:SiO2 molar ratio within the range extending from 0.51 to 0.60, M representing Na or K and also the use of a superplasticizer comprising a crosslinked polymer of acrylic acid in the manufacture of geopolymer cement.

Description

technical field [0001] The invention relates to the field of structures and buildings. In particular, the present invention relates to a new type of non-corrosive geopolymer cement. Background technique [0002] There are two types of cement, namely, "hydraulic" cement (such as Portland cement) and "geopolymer" cement. The latter are called geopolymer cements because they are based on inorganic geopolymers formed by polymerizing aluminosilicate oxides in the presence of alkaline activators such as alkaline polysilicates. The geopolymer thus obtained has a three-dimensional structure containing Si-O-Al bonds. [0003] About 1 ton of CO is produced due to the formation of 1 ton of hydraulic cement 2 , while forming 1 ton of geopolymer cement only produces about 0.1 ton of CO 2 , so the production of geopolymer cement is obviously more environmentally friendly than the production of hydraulic cement. Furthermore, the total energy consumption involved in the production of g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/10C04B103/32
CPCC04B28/006C04B2111/00215Y02P40/10Y02W30/91C04B14/104C04B14/106C04B16/0691C04B18/08C04B18/141C04B24/2647C04B16/0641C04B2103/32C04B16/0633
Inventor 希尔尤·陶·于因
Owner 法国运输规划和运输网科学技术学院
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