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Grout Micro-J

Micromortar anti-shrinkage rheoplastic, castable, injectable

An anti-shrinkage, pourable, self-levelling, super-adhesive micro-mortar, based on high-strength cements, super-pozzolanic fillers, polymeric stabilisers and anti-shrinkage agents. Aggregates with a maximum size of 0.35 mm. Ideal for consolidating and reinforcing injections on concrete, masonry and cracked/damaged rock. Anchors and fastens steel bars, pins, brackets and so on, to concrete, masonry and rock.
Components
Single-component
Appearance
Powder
Customs code
3824 5090

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    Obtained Certifications and Regulations
    EN 1504-6EN 998-2M80
    Lines of belonging
    Linea prodotto Infratech
    Linea prodotto Opus
    Thematic site
    Grout Power
    Where it is used
    How to use
    Technical data
    Additional content
    Warnings and precautions
    Media
    Related products
    Fields of application

    Injections of reinforcement and reinforcement of concrete, masonry, rock works etc. Anchoring and fixing of ties, electrowelded steel mesh, beam ends for construction joints etc. Sealing of post-tensioning sheathing. Creation of filling paddings in the spaces between conduits and excavation holes.


    Allowed supports
    Concrete
    Mixed walls (bricks and stones)
    Stone walls
    Preparation of supports

    Application surfaces should be clean, free of soiling, crumbling and non-adhering parts, dust, etc., conveniently saturated with water until they reach the condition "saturated with dry surface". An adequate roughening of the surfaces by scarifying, sandblasting etc. is always necessary in order to obtain the maximum adhesion values to the substrate. The optimal values are obtained with high pressure hydro-scarification. Bare the irons undergoing disruptive oxidation or deeply oxidized, removing the rust of the exposed irons (by sandblasting or abrasive brushes). When used for anchoring and fixing of bars, perform holes with an increased diameter of at least 4 mm compared to the diameter of the bar. Suck the dust inside the hole. Abundantly humidify the internal surface of the hole to facilitate entry, scrolling and adherence of the micromalta to the support.


    Mode of use

    Pour 2/3 of the total mixing water into the mixer, gradually add the product and, subsequently, the remaining water, mixing until a homogeneous mixture of the desired consistency is obtained. GROUT MICRO J can be mixed with different consistencies, from plastic to self-leveling pourable. With 12-13% of water (3.0 - 3.25 liters / 25 kg bag) plastic consistencies are obtained, with 13-14% (3.25-3.5 liters / 25 kg bag) consistencies castable, with 14-15% (3.5-3.75 l / 25 kg bag) self-leveling fluid consistencies. Small-volume doughs can be mixed with a double / triple helicoid whisk equipped with a speed regulator. Put in place by injection or pouring within 60' of packaging. If the temperature, at the time of application, is between 0 and 5 ° C, the development of mechanical strength will be slower. It is recommended, with cold temperatures, to use lukewarm mixing water between 20 ÷ 30 ° C. If the temperature, at the time of application, is between 30 and 35 ° C, it is advisable to use mixing water at a low temperature (5 ÷ 10 ° C) and to apply the product in the coolest hours of the day (indicatively morning or evening).


    Application methods
    Pour out
    Injection
    Pump
    Tool cleaning
    Water
    Key features
    Maximum diameter of aggregate
    Maximum diameter of aggregate: 0.50 mm
    Pot-life
    Pot-life: 60 min
    Shelf-life
    Shelf-life: 12 months
    Temperature of use
    Temperature of use: +5 / +35 ยฐC
    Technical specifications

    Compressive strength after 1 day
    UNI EN 12190

    > 28 N/mmยฒ

    Compressive strength after 7 days
    UNI EN 12190

    > 70 N/mmยฒ

    Compressive strength after 28 days
    UNI EN 12190

    > 85 N/mmยฒ

    Flexural strength at 1 day
    UNI EN 196/1

    > 7 N/mmยฒ

    Flexural strength after 7 days
    UNI EN 196/1

    > 11 N/mmยฒ

    Flexural strength after 28 days
    UNI EN 196/1

    > 12 N/mmยฒ

    Steel bar extraction at a load of 75 kN (EN 1504/6)

    < 0.6 mm

    Darcy impermeability

    10^(-10) cm/s

    Bonding force
    UNI EN 1015-12

    > 2.5 N/mmยฒ

    Static elastic modulus
    EN 13142

    25000 N/mmยฒ

    Resistance to the extraction of the steel bars with improved adhesion
    RILEM-CEB-FIP RC6-78

    > 24 N/mmยฒ

    Density
    UNI EN 1015-6

    2250 kg/mยณ
    No bleeding according to UNI 8998

    Capillary absorption
    UNI EN 13057

    0.08

    Thermal conductivity

    0.68 W/mK

    pH

    >12

    Chloride content
    UNI EN 1542

    0.002 %
    Consumption

    Approximately 1700 kg of Grout Micro-J for every cubic metre of mixture to be made.

    Available colors
    Gray
    Packaging and dimensions
    Bag 25 kg
    Pallet: 50 x (Bag 25 kg)
    Storage and conservation
    Store the product in its original packing, in a fresh and dry environment, avoiding frost and direct sunlight.
    Additional content

    Warnings
    The general information, along with any instructions and recommendations for use of this product, including in this data sheet and eventually provided verbally or in writing, correspond to the present state of our scientific and practical knowledge.
    Any technical and performance data reported is the result of laboratory tests conducted in a controlled environment and thus may be subject to modification in relation to the actual conditions of implementation.

    Azichem Srl does not assume any liability arising from inadequate characteristics related to improper use of the product or connected to defects arising from factors or elements unrelated to the quality of the product, including improper storage.
    Those wishing to utilise the product are required to determine prior to use whether or not the same is suitable for the intended use, assuming all consequent responsibility.

    The technical and characteristic details contained in this data sheet shall be updated periodically. For consultation in real time, please visit the website: www.azichem.com. The date of revision is indicated in the space to the side. The current edition cancels out and replaces any previous version.

    Please note that the user is required to read the latest Safety Data Sheet for this product, containing chemical-physical and toxicological data, risk phrases and other information regarding the safe transport, use and disposal of the product and its packaging. For consultation, please visit: www.azichem.com.
    It is forbidden to dispose of the product and/or packaging in the environment.
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