Batimix Thixo M-810

Holderchem

Viscosity modifier for improved thixotropy and homogeneity

Description

BATIMIX Thixo M-810 is a ready-to-use liquid admixture designed to modify the viscosity of fresh mortars and grouts. In conjunction with superplasticizer agents, it yields highly flowable mixes that exhibit no bleeding or segregation.

Main Purpose

BATIMIX Thixo M-810 enhances the cohesiveness of highly flowable mortars. It reduces the risk of material separation during application and until the onset of hardening.

It incorporates water-soluble polymers characterized by their long-chains of complex forms that adhere to the periphery of mixing water molecules in a cement paste. The chains can intertwine and develop attractive forces through hydrogen bonds and polymer entanglements, resulting in increased plastic viscosity and yield stress, even in high water-cement ratio mixtures.

BATIMIX Thixo M-810 is used to produce mortars and grouts for shotcrete and repair works, such as injection, patching, and pointing.

Features

Mortars prepared with BATIMIX Thixo M-810 are characterized by the following:

In the plastic state:

  • Greatly reduced levels of bleeding and segregation
  • Increased cohesiveness with fewer risks of mixture constituents separating
  • Enhanced water retaining properties over time
  • Improved stability of fresh mortar during casting and thereafter
  • Thixotropic action, providing enhanced homogeneity
  • Sag-resistance in shotcrete applications

In the hardened state:

  • At normal dosages, no detrimental effect on setting time
  • Improved durability and better surface quality

Properties

  • Appearance: brown liquid
  • Specific gravity : around 1.01 at 23 ºC
  • Chloride content : nil
  • Alkali content : typically less than 0.5% as Na₂O
  • Air entrainment : typically less than 0.5%
  • Freezing point: 0 ºC

Health and Safety

BATIMIX Thixo M-810 is not a hazardous material. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable gloves and goggles should be worn. For additional information, kindly refer to the product’s Material Safety Data Sheet.

Compliance with Standards

BATIMIX Thixo M-810 is developed to comply with the requirements of BS 8443:2005.

Dosage Rates

BATIMIX Thixo M-810 is generally used in conjunction with a superplasticizer to secure the required workability without additional water. Its optimum dosage on the fresh mortar properties such as workability, bleeding, and segregation is best determined by trials using the actual mix composition with site materials under conditions that will be experienced in use. As a guide to such trials, the addition rates shall vary from 0.15% to 0.8% of the cementitious materials.

Effect of Overdosing

An overdose of BATIMIX Thixo M-810 will result in highly sticky and viscous material requiring significantly higher dosages of superplasticizer to ensure mortar workability. This, in its turn, will delay setting times and decrease strength development especially after 24 hours. Provided adequate curing is applied, the ultimate strength will not be impaired by such setting retardation.

Compatibility

BATIMIX Thixo M-810 is compatible with all types of Portland cement, replacement materials such as silica fume, and other Holderchem admixtures incorporated in the same mortar. During batching, all admixtures should be added separately to the mortar mix. The performance of various admixtures on the fresh and hardened properties should be assessed using trial tests.

Dispensing

BATIMIX Thixo M-810 should not be directly added on the dry cement. It should rather be introduced towards the end of mixing, i.e. after incorporating all of the mixing water and other chemical admixtures.

Typical batching sequence that may be used when producing highly-flowable mortars with BATIMIX Thixo M-810 is as follows: • air entraining admixture (optional) • set-modifying admixture (optional) • high-range water reducer • BATIMIX Thixo M-810

Technical Support

Holderchem provides, upon request, complete technical support and on-site assistance to enable correct and effective use of its products.

Storage

BATIMIX Thixo M-810 has a minimum shelf life of 12 months if kept unopened and stored at temperatures ranging from 2 to 50 ºC.

Packages

  • 1 t IBC
  • 200 kg metallic drum
  • 20 kg metallic pail
  • 4 kg metallic pail
TS 5621Issue Date: 15-01-2021

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