Insta Micro Crete
Ready Mix Micro Concrete
INSTA MICRO CRETE is a ready mix micro concrete designed for structural repair, jacketing, and grouting applications where conventional concrete placement is difficult. It is a dry mix, cementitious micro concrete formulated with graded aggregates, polymer modifiers, and performance additives to deliver controlled flow, high strength, and non shrink characteristics.
This flowable micro concrete is suitable for areas with dense reinforcement, restricted access, and complex formwork conditions. Once mixed with water, it produces a free flow concrete that can be poured or pumped without the need for vibration. The material is engineered to achieve uniform compaction, strong bond with existing substrates, and consistent performance across repair and rehabilitation works.
Insta Micro Crete is widely used as a non shrink micro concrete for restoring structural integrity in columns, beams, slabs, and foundations.
What is Ready Mix Micro Concrete
Ready Mix Micro Concrete is a pre blended cementitious material designed for repair and strengthening of reinforced concrete structures. Unlike conventional concrete, it contains finer aggregates and additives that enable it to flow easily into narrow sections and congested reinforcement zones.
It is commonly used as a micro concrete for jacketing, structural repairs, and as a high strength grout where conventional concrete placement is not feasible. The material ensures better compaction, reduced voids, and improved durability compared to site mixed alternatives.
Product Overview
Insta Micro Crete is a ready to use concrete mix that simplifies on site application while maintaining consistent quality. The formulation ensures predictable performance in terms of strength gain, workability, and shrinkage control.
- Type: Ready Mix Micro Concrete
- Form: Dry powder
- Application: Structural repair mortar and jacketing
- Key Property: Non shrink, free flow, high strength
- Suitable for: Repair and rehabilitation concrete applications
Key Features
- Free flowable micro concrete suitable for gravity placement
- Non shrink properties for dimensional stability
- High early and long term compressive strength
- Polymer modified concrete for improved bonding
- Compatible with existing concrete substrates
- Requires only water addition for mixing
- Suitable for pumping and pouring applications
Performance Benefits
- Ensures uniform filling in heavily reinforced sections
- Minimizes shrinkage cracks and improves durability
- Provides strong adhesion to old concrete surfaces
- Reduces application time and labor dependency
- Offers consistent quality compared to site mixed concrete
- Enhances structural performance in repair applications
Advantages
- Placement without vibration, suitable for restricted access areas
- Dual shrinkage compensated formulation reduces cracking risk
- High compressive strength and reliable strength development
- Strong adhesion to embedded steel reinforcement
- Properly designed micro concrete can be pumped or poured easily
- Pre packed material ensures consistent quality and mix proportion
- Saves time and reduces labor cost on site
- Easy mixing process, only water is required
Technical Details
| Water for Mixing | Approx. 4 to 4.5 liters per 25 kg bag |
| Grades Available | M40, M60 and M75 |
| Flexural Strength | 8 N per mm² at 28 days |
| Compressive Strength | Up to 40 N per mm² and above depending on grade |
| Particle Size | 100 micron to 3 mm. |
| Initial Setting | Approx 45 to 90 mins. |
| Final Setting | Around 24 hours |
| Pot Life | 20- 25 mins. |
| Shelf Life | 4 months in sealed condition |
| Dry Density | Approx. 2000 to 2200 kg per m³ |
| Yield | Approx. 2100 kg per m³. |
| Packing Size | 25 kg and 40 kg bags |
Area of Applications
- Jacketing of columns, beams, and slabs
- Structural repair of RCC elements
- Grouting of large gaps and voids
- Micro concrete for jacketing in retrofitting projects
- Repair of damaged concrete surfaces
- Can be applied up to 100 mm thickness in a single layer
Form Work
- Formwork must be rigid, leak proof, and properly sealed to prevent grout loss
- It should be capable of withstanding hydrostatic pressure during pouring
- Ensure adequate provision for air release vents to avoid air entrapment
- Formwork should allow continuous and uniform placement of micro concrete
Mixing and Application
Use Cases by Industry
- Infrastructure repair such as bridges and flyovers
- Industrial structures including factories and plants
- Commercial buildings requiring structural strengthening
- Residential repair and rehabilitation projects
- Precast element repair and correction
Do's
- 1. Use full bag contents for consistent mix proportion
- 2. Follow recommended water dosage
- 3. Use mechanical mixing for uniform consistency
- 4. Place the material within its pot life
- 5. Ensure proper surface preparation before application
Don'ts
- 1. Do not remix partially set material
- 2. Do not use in thickness beyond specified limits without layering
- 3. Do not apply on contaminated or weak substrates
- 4. Do not delay placement after mixing
Safety Measures
Storage and Shelf Life
Store Insta Micro Crete in a dry and covered environment. Bags should be kept off the ground and protected from moisture exposure. The product has a shelf life of approximately four months when stored in original sealed packaging.
Packaging and Coverage
- Available in 25 kg and 40 kg bags
- Coverage depends on application thickness and surface condition
- Approximate yield is 12 to 13 liters per 25 kg bag
Comparison with Conventional Concrete
- Microcrete has higher flowability compared to conventional concrete
- Suitable for congested reinforcement areas where vibration is not possible
- Provides better bonding and reduced shrinkage
- Requires less site handling and ensures consistent quality
- Ideal for repair and rehabilitation rather than new construction
FAQs
Q1. What is microcrete used for?
Answer: Microcrete is used for structural repairs, jacketing of columns and beams, and filling voids in reinforced concrete structures.
Q2. What is the difference between micro concrete and regular concrete?
Answer: Micro concrete contains finer aggregates and is designed for flowability and repair applications, while regular concrete is used for general construction with larger aggregates.
Q3. Is microcrete non shrink?
Answer: Yes, most ready mix micro concrete products including Insta Micro Crete are designed to be non shrink to prevent cracking and ensure dimensional stability.
Q4. How to use ready mix micro concrete?
Answer: It is mixed with a specified amount of water, mechanically blended, and then poured or pumped into the prepared area without vibration.
Q5. Where is microconcrete applied?
Answer: It is commonly applied in columns, beams, slabs, foundations, and areas with dense reinforcement.
Q6. What is the strength of micro concrete?
Answer: Depending on the grade, micro concrete can achieve compressive strengths ranging from 40 MPa to 75 MPa or higher.