DAREX® AE5 is a liquid air-entraining admixture with plasticising properties used to entrain a controlled volume of air into a concrete mixture, while permitting a considerable reduction in the free water content.
DAREX® AE5 conforms to EN 934-2. The air-entraining properties enable it to entrain into concrete controlled quantities of air bubbles of the optimum spacing and diameter to give durability under freeze/thaw conditions.
| DARASET® 590 | ||
| Appearance | Straw Liquid | |
| Specific Gravity (20°C) | 1.100 | |
| Alkali Content (eq.Na20) | 2.00% | |
| Chloride Content | Nil | |
| Air Entrainment | See “Addition Rates” | |
| Freezing Point | 0⁰C | |
DAREX® AE5 is supplied ready for use.
It should be added to the concrete mixture during the mixing process with the water. It should not be added directly to the cement. No extension of normal mixing time is necessary. The performance of DAREX® AE5 is best assessed after preliminary trials both in the laboratory and on site. The percentage of air entrained is dependent upon the concrete workability. Aggregate type is important in selecting a suitable dosage.
With Cements :
DAREX® AE5 can be used with most types of Portland cements. It is also effective in concrete containing fly ash or ground granulated blastfurnace slag. For use with special cements we recommend that you consult GCP Applied Technologies.
With Other Admixtures:
DAREX® AE5 should not under any circumstances 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 | 240 ml - 500 ml per 100 kg cement |
| 0.24% -0.50% (v/w) by wt. of cement | |
| As a guide to trials an addition rate of 0.12-0.28% volume by weight of cement is suggested. | |
| For advice and assistance with trials we recommend that you consult GCP Applied Technologies. | |
The effect of overdosing DAREX® AE5 is a function of the degree of overdose. Serious overdosing of DAREX® AE5 will generally produce a considerable increase in workability, an increase in air content, and retardation of setting time. In cold weather, this retardation will be further increased. In such cases however, provided the concrete is properly cured, the ultimate strength will not be seriously reduced.
It is preferable that DAREX® AE5 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 Material Safety Data Sheet from GCP. In line with general chemical handling precautions avoid contact with skin or eyes and protective gloves/goggles should be worn.
DAREX® AE5 is supplied in both 15 or 205 non returnable drums and 1,000 litre totes. Alternatively, bulk deliveries can be arranged. DAREX® AE5 should be stored away from extremes of temperature and then protected from frost. The product should be kept out of direct sunlight in shaded storage at all times.
Storage Life in Manufacturer ‘s Drums :
12 months from date of manufacture.
Storage Life in Bulk Storage:
12 months from date of delivery.
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.
DAREX 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: 2023-06-13
https://gcpat.uk/en-gb/solutions/products/darex-ae5