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Structural Repair

Micro Concrete

Flowable Shrinkage-Compensated Structural Jacketing Concrete

Pre-bagged, single component, polymer-modified micro concrete designed for structural encasement, heavy section repair, and column enlargement without vibration.

Need mix design or on-site support? See our technical services

High-fluidity micro concrete pumped and placed onto reinforced concrete foundation
IS & ASTM VerifiedChennai Manufacturing
What Engineering Problem It Solves

Restores spalled, honeycombed, or undersized concrete structural columns, beams, and slabs without requiring heavy mechanical vibration.

Substrate Suitability: Existing RCC columns, beams, foundation footings, and bridge piers.

Key Performance Advantages

Self-compacting flow fills congested structural rebar jackets with zero voids
Exceptional interfacial bond strength to parent concrete substrate
Low permeability arresting ingress of chlorides, CO₂ and moisture
Rapid early strength permitting early shuttering strip and loading
1Chip unsound concrete beyond exposed steel rebar and apply zinc-rich anti-corrosion primer.
2Drill and anchor shear rebar dowels where structural section enlargement is required.
3Erect rigid, watertight shuttering with top hopper pouring chutes.
4Mix micro concrete with 3.5–3.75L water per 25kg bag and pour continuously without vibrating.

Technical Specifications

StandardEN 1504-3 Class R4 • IS 516
Dosage / Rate25kg bag yields approx. 12.5 litres of mixed micro concrete
Packaging25kg & 40kg Heavy-duty moisture-barrier bags.
Compressive Strength (28D)> 60 N/mm²
Bond Strength (Slant Shear)> 14 N/mm² (Substrate Failure)
Modulus of Elasticity> 28 GPa
Drying Shrinkage< 300 microstrains

Typical Site Applications

  • RCC column and beam jacketing / section enlargement
  • Structural slab repairs and bridge deck renewals
  • Heavy honeycombing rectification in deep mass concrete
  • Industrial floor section replacement under heavy rolling loads

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AUTHORIZED DEALER STOCK

Related Formulations from Fosroc

Certified dealer-stock formulations available for same-day dispatch to complement your micro concrete requirements.

17 Products Stocked
Fosroc

Brushbond Grey

A cementitious bonding and rendering coat used to key new concrete or plaster to old, prepared surfaces. Commonly used ahead of plastering, screeding, or repair mortar application to ensure strong adhesion between old and new layers.

Available Pack Sizes / Variants:
35.58KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: brushbond-greyEnquire / Quote
Fosroc Featured

Brushbond RFX Grey

A reinforced bonding agent from the Brushbond range, formulated for higher-bond-strength applications where standard bonding coats aren't sufficient — typically specified for structural repair and rehabilitation work.

Available Pack Sizes / Variants:
30KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: brushbond-rfx-greyEnquire / Quote
Fosroc

Nitobond EP

A two-part epoxy resin bonding agent used to achieve a high-strength structural bond between old and new concrete, widely used in repair work, overlays, and structural strengthening where mechanical bond strength is critical. VERIFY exact pot life and strength figures against current datasheet.

Available Pack Sizes / Variants:
4L1L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitobond-epEnquire / Quote
Fosroc

Fosroc Rebaklens RR

A surface preparation/release-aid product used ahead of repair or coating application to improve surface receptiveness. VERIFY exact application and product category against current datasheet — naming suggests it may be related to the Reebaklens line (see separate entry).

Available Pack Sizes / Variants:
1LTR

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: rebaklens-rrEnquire / Quote
Fosroc

Rendroc RG

A polymer-modified repair mortar from the Renderoc/Rendroc range, used for reinstating concrete sections and structural repair work where a trowel-applied, durable patching material is required.

Available Pack Sizes / Variants:
30KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: rendroc-rgEnquire / Quote
Fosroc

Nitozinc Primer

A zinc-rich anti-corrosive primer applied to exposed reinforcement steel before repair mortar application, forming a protective barrier that inhibits further corrosion and improves bond with the subsequent repair layer.

Available Pack Sizes / Variants:
1LTR5LTR

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitozinc-primerEnquire / Quote
Fosroc

Concure WB White

A wax-based white-pigmented curing compound sprayed onto freshly placed concrete to retain moisture during the critical early curing period, reducing plastic shrinkage cracking while reflecting heat via its white finish.

Available Pack Sizes / Variants:
20LTR200KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: concure-wb-whiteEnquire / Quote
Fosroc

Nitobond AR

An acrylic-resin-based bonding agent used to improve adhesion between repair mortars/renders and existing concrete substrates, suited to general repair and rendering work.

Available Pack Sizes / Variants:
20L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitobond-arEnquire / Quote
Fosroc

Nitobond SBR

A styrene-butadiene rubber (SBR) polymer bonding agent, used both as a concrete bonding aid and as a polymer additive in repair mortars to improve flexibility, adhesion, and water resistance.

Available Pack Sizes / Variants:
5LTR25L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitobond-sbrEnquire / Quote
Fosroc

Nitobond SBR Latex

The latex-concentrate variant of Nitobond SBR, used as a polymer modifier in repair mortar and rendering mixes to enhance bond strength, crack resistance, and durability of the finished repair.

Available Pack Sizes / Variants:
25L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitobond-sbr-latexEnquire / Quote
Fosroc

Nitobond PC40

A polymer-modified cementitious bonding/patching compound used for smaller-scale repair and surface reinstatement work. VERIFY exact application scope against current datasheet.

Available Pack Sizes / Variants:
6kg

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: nitobond-pc40Enquire / Quote
Fosroc

Rendroc SP40

A single-component, polymer-modified structural repair mortar from the Renderoc/Rendroc range, trowel-applied for reinstating spalled or damaged concrete sections in structural repair work.

Available Pack Sizes / Variants:
25KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: rendroc-sp40Enquire / Quote
Fosroc

Reebaklens

A surface treatment product used in concrete finishing/release applications. VERIFY exact product category and relationship to the separately listed Fosroc Rebaklens RR — naming suggests these may be the same product line.

Available Pack Sizes / Variants:
1L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: reebaklensEnquire / Quote
Fosroc

Rendroc CS White

A cementitious surface repair/skim compound in white finish, used for small-scale patching and surface reinstatement where an aesthetic, paintable finish is required.

Available Pack Sizes / Variants:
1KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: rendroc-cs-whiteEnquire / Quote
Fosroc

Rendroc Plug

A rapid-setting cementitious plugging compound used to instantly stop active water leaks/seepage in concrete and masonry — a first-response product for water-stop repair before permanent waterproofing is applied.

Available Pack Sizes / Variants:
5 Kgs15KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: rendroc-plugEnquire / Quote
Fosroc

Moulding Oil

A shuttering/formwork release oil applied to mould surfaces before concrete casting, allowing clean release of hardened concrete from formwork and reducing surface defects.

Available Pack Sizes / Variants:
220KG

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: moulding-oilEnquire / Quote
Fosroc

Reebol

A curing/release compound range used in precast and cast-in-place concrete work to aid demoulding and support proper curing of the finished surface.

Available Pack Sizes / Variants:
Emulsion Xtra, 200LStandard, 200L

Equivalent formulations also available across our stocked brands — enquire for alternatives.

SKU: reebolEnquire / Quote

TECHNICAL FAQS & FIELD GUIDELINES

Frequently Asked Questions: Micro Concrete

In-depth technical answers regarding site compatibility, storage requirements, and application procedures.

Yes. Vchemics micro concrete is formulated with spherical micro-aggregates (<5mm) and high-range fluidifying polymers, giving it self-compacting rheology (slump flow >650mm). This lets it fill narrow jackets and complex formwork void-free, with zero needle vibration.
Technical Documentation & Compliance

Request Technical Data Sheet (TDS) & Method Statement

Obtain full certified laboratory test reports, mix design guidelines, ASTM/IS compliance certificates, and formal method statements for Micro Concrete.

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Master Builders Solutions Logo
Sika Building Trust Logo
Berger Home Shield Scientific Waterproofing Logo
Renacon AAC Blocks Logo
MYK Arment Construction Chemicals Logo
STP Limited Logo
Ardex Endura Logo