V-MAR® 6R is an innovative low viscosity, highly efficient, rheology modifying admixture designed for the production of concrete with improved handling and processing characteristics. It enables pump mixes to be more easily and economically produced, as well as increasing tolerance to water variations or poorly graded aggregates. It is beneficial in improving cohesion of all concrete mix designs, including Self Compacting Concrete and can be used to reduce segregation, bleed and settlement of the mix constituents.
V-MAR® 6R can be used over a wide dosage range to produce a range of concrete mix designs that have excellent plastic and hardened properties
V-MAR® 6R is itself low viscosity, with excellent dispensing properties.
| Appearance | Amber / Straw liquid |
| Specific Gravity (20°C) | 1.000 |
| Alkali Content (eq. Na2O) | max 2.00% |
| Chloride Content | Nil |
| Air Entrainment | 1.0% |
| Freezing Point | 0°C |
V-MAR® 6R is supplied ready for use.
When adding to a concrete mix it should be added in its supplied form with part of the batching water, after the addition of the cementitious component.
V-MAR® 6R can be used with all types of cement, including limestone cements. It is also effective in concretes containing fly ash or ground granulated blastfurnace slag, however some reduction in dosage may be necessary.
For use with special cements we recommend you contact GCP Applied Technologies.
V-MAR® 6R 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.
| Range | 100 ml -500 ml per 100 kg cement |
| 0.10%-0.50% (v/w) by wt. of cement | |
| As a guide to trials an addition rate of 0.15 - 0.30% volume by weight of cement is suggested. | |
| For advice and assistance with trials we recommend that you consult GCP Applied Technologies. | |
As with most products of this type, the magnitude of the effect obtained with V-MAR® 6R is governed by the quantity used, water/cement ratio, and specific nature of the concrete and constituent materials.
It is necessary, therefore, to assess performance under site conditions using actual materials to determine optimum dosage and effect on both plastic and hardened concrete properties, such as cohesiveness, workability retention, set characteristics, early rate of strength gain, ultimate compressive strength and shrinkage when these are of consequence.
The effect of overdosing V-MAR® 6R is a function of the degree of overdose.
When producing high workability concrete, overdosing will increase the level of workability and may induce the onset of segregation.
Depending on the extent of the overdose, an increase in setting time may also occur, especially in low ambient temperatures and/or when employing sulfate resisting cement or cement replacement materials.
Any situation where an overdose is suspected, careful inspection of the concrete in its plastic state should be conducted. Particular attention to consistency and cohesiveness prior to a decision on the suitability of the concrete for the particular application in question.
It is preferable that V-MAR® 6R should be introduced into the mixer by means of automatic dispensing equipment.
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.
V-MAR® 6R is supplied in 205 non returnable drums and 1,000 litre totes.
Alternatively, bulk deliveries can be arranged.
V-MAR® 6R should preferably be stored away from extremes of cold or heat. The product should be kept out of direct sunlight in shaded storage at all times.
12 months from date of manufacture.
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.
VMAR 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 2018 GCP Applied Technologies Inc. All rights reserved.
GCP Applied Technologies (UK) Ltd., 830 Birchwood Boulevard, Birchwood, Warrington, WA3 7QZ United Kingdom
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/v-mar-admixtures/v-mar-6r