MORTAIR® DPX is a powdered air-entraining agent for use in the production of air entrained mortar.
MORTAIR® DPX is specifically formulated to allow site production of dry silo mortars with air contents complying with EN 998.
MORTAIR® DPX yields a constant air content over a wide range of dosages. MORTAIR® DPX gives an extremely stable air system and complies with EN 934-3.
| MORTAIR® DPX | ||
| Appearance | Off white powder | |
| Bulk Density | 900 kg/m3 | |
| Alkali Content (eq.Na20) | 2.00% | |
| Chloride Content | Nil | |
| Air Entrainment | See “Addition Rates” | |
| Freezing Point | -2⁰C | |
MORTAIR® DPX is supplied ready for use.
It should be added to the mortar mixes during the mixing process at the same time as the water or fine aggregate, but not directly onto cement. With good plant control, very consistent results can be obtained.
The amount of MORTAIR® DPX required is dependent on the characteristics of the mortar constituents and the level of air entrainment required. Factors which affect this are:
With Cements :
MORTAIR® DPX can be used with most types of Portland cements. It is also effective in mortar containing fly ash or ground granulated blastfurnace slag. For use with special cements we recommend contacting GCP Applied Technologies.
With Other Admixtures:
MORTAIR® DPX should not be premixed with other admixtures. The performance of the product will be affected by the presence of other chemical admixtures. We recommend that all admixtures be added separately into the mix.
| Range | 300 ml - 800 ml per 100 kg cement |
| 0.30% - 0.80% (v/w) by wt. of cement | |
| As a guide to trials an addition rate of 0.40 - 0.60% volume by weight of cement is suggested. | |
| For advice and assistance with trials we recommend that you consult GCP Applied Technologies. | |
It is essential that preliminary plant trials are performed so that the actual dosage rates can be determined, taking into account the contributing factors stated (where MORTAIR® DPX is used in mortar containing fly-ash, the dosage rate may typically be twice the range quoted above).
The effect of overdosing MORTAIR® DPX is a function of the degree of overdose.
Overdosing with MORTAIR® DPX will result in a modest increase in air content and workability.
It is preferable that MORTAIR® DPX should be introduced into the mixer by automatic dispensing equipment. Equipment or advice on dispensing can be obtained from GCP Applied Technologies.
For further information on Health and Safety matters regarding this product we recommend that you consult the relevant Safety Data Sheet from GCP Applied Technologies. In line with general chemical handling precautions avoid contact
with skin or eyes and protective gloves/goggles should be worn.
MORTAIR® DPX is supplied in both 25 or 1000 kg bulk bags.
MORTAIR® DPX should be stored in a cool, dry place protected from rain and extremes of temperature.
Storage Life in Manufacturer‘s Bags:
12 months from date of manufacture.
Our Technical Service department of GCP Applied Technologies is available to assist you in the correct use of our performance chemicals.
We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.
MORTAIR is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.
© Copyright 2020 GCP Applied Technologies Inc. All rights reserved.
GCP Applied Technologies (UK) Ltd, Gate St, Dukinfield SK16 4RU.
This document is only current as of the last updated date stated below and is valid only for use in the United Kingdom. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.uk. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.
Last Updated: 2025-05-13
https://gcpat.uk/en-gb/solutions/products/mortair-dpx