OUR QUALITY CONSTRUCTIONS
Building Water Proof
SANVITHRAA specializes in advanced waterproofing systems that provide long-lasting protection against water damage. Using premium materials and modern techniques, we ensure leak-proof, durable structures. Our solutions strengthen structural integrity, prevent moisture infiltration, and extend the lifespan of every property.
FEATURES
Delays Corrosion - Makes concrete more cohesive, hence protects steel better against corrosion. Improves workability with M-Sand - Facilitates easy placing and good compaction of mixed cement concrete
and plaster mortar/ screed specially made with M-Sand.Waterproof concrete & mortar - Increases durability by improving waterproofing of concrete.
Increase strength and durability - The setting time and compressive strength of the concrete remains within
the specification limits.Compatibility - Being a liquid, easily dispersible & compatible with concrete/mortar mixes.
Shrinkage - Reduces shrinkage crack development in plaster & concrete.
FEATURES
- Film thickness – Provides higher dry film thickness of 1 mm in three coat application
- Crack bridging - Bridges cracks up to 2 mm width
- Application advantage - No need to remove existing sound brickbat coba, plaster, concrete surface
- Suitability - Can be used for flat as well as sloping roofs
- Strength - Higher tensile strength, tear resistance & bond strength with cementitious substrates
- Resilience – Forms highly elastic & resilient coating so helps to withstand the structural movements
- Durability – Resistant to UV & weather conditions
- Abrasion resistant – No additional protective coating is required for roof subjected to foot traffic
- Ease of application – Can be applied by brush & roller easily
- Weight addition – Light in weight does not add extra weight over the roof
- Toxicity – It is non-toxic in nature
- Breathability – It is breathable
- Easy to recoat existing surfaces coated earlier with Dr. Fixit Roofseal Select.
FEATURES
- Resists the attack of salts like chlorides and sulphates that are present in the soil.
- Easy to apply
- Cold applied
- Adheres to concrete
- Can be applied in closed or confined spaces
- Avoid Damping in Basement brick work surface
- Avoid Damping in bathroom walls surface
- Avoid Damping in Kitchen walls
Water Curing For Building
Water curing is a vital process in construction that enhances the strength and durability of concrete by retaining adequate moisture during the curing period. Proper hydration of cement particles is essential to achieve the desired physical properties. This method also helps minimize cracking, shrinkage, and surface damage, ensuring long-lasting and reliable concrete structures.
- Minimum Curing Time: 7 days
Key Points:
- First 3 Days: Curing should be continuous or covering with Gunny Sack Bag
- After 3 Days: Curing can be reduced, but maintaining moisture is important to avoid early cracking.
- Extended Curing: In hot climates, or for high-strength concrete, curing for up to 14 days is recommended to achieve the ultimate strength.
Curing Methods:
- Spraying : Continuously spray water on the surfaces .
- Gunny Sack Bag: Use a chemical curing compound if water curing is difficult.(*Gunny sack bag peovied for client for better curing)
Proper curing helps concrete gain maximum strength, durability, and prevents shrinkage cracks.
- Minimum Curing Time: 7 days
Key Points:
- First 3 Days: Water curing should be done continuously (at least 2-3 times a day) to maintain moisture in the mortar.
- After 3 Days: The curing time can be reduced, but ideally, the bricks should still be kept moist for up to 7 days for regular strength .
- Weather Considerations: In hot or dry climates, you may need to increase the frequency of water curing or extend the curing period to ensure that the mortar does not dry too quickly and lose strength.
Methods of Curing:
- Spraying water on the brickwork surface.
FEATURES
- Resists the attack of salts like chlorides and sulphates that are present in the soil.
- Easy to apply
- Cold applied
- Adheres to concrete
- Can be applied in closed or confined spaces
*These are general guidelines given based on our experience. Always refer to structural engineer for specific projects to ensure proper Curing Time.
Ratio For Plastering and Concrete
1. Internal Wall Plastering
- Cement: Sand Ratio: 1:5
- Thickness: 12–15 mm
- Used for smooth and even finishing on internal walls.
2. External Wall Plastering
- Cement: Sand Ratio: 1:5
- Thickness: 15–18 mm
- Provides weather resistance and a protective layer for external walls.
3. Ceiling Plastering
- Cement: Sand Ratio: 1:3
- Thickness: 8–10 mm
- Lightweight plastering for overhead surfaces.
4. Concrete Wall Plastering
- Cement: Sand Ratio: 1:5
- Often applied to achieve smoothness on rough concrete surfaces.
Points to Remember:
-
- Always use clean and dry sand.
- Mix water gradually to achieve the desired workability.
- Use fresh cement to ensure durability and strength.
- Apply the plaster within 30 minutes of mixing to prevent drying issues.
Mix Ratio (cement : sand : aggregates)
- PCC -M5 or M7.5 - (1:5:10) or (1:4:8)Non-structural applications like paths or Wall foundations under static loads
- BEAM,COLUMN,SLABS - M20 (1:1.5:3) Reinforced concrete works, slabs
M5 to M7.5 Grades: Ideal for non-load-bearing structures, such as garden paths and fence post footings. These mixes are unsuitable for supporting buildings but great for small DIY projects.
M20 Grade: This high-strength concrete is suitable for significant structural applications, including support columns and beams bearing heavy loads.
Recommened Cover Size
Cover size are essential in construction as they ensure uniform cover thickness, protecting reinforcement bars from corrosion and environmental factors. They enhance the fire resistance of structures by shielding steel bars from heat exposure. By maintaining proper spacing, cover blocks improve load-bearing capacity and prevent cracks, ensuring structural durability. Additionally, they contribute to a smooth and aesthetic finish by keeping reinforcement concealed. Lightweight and cost-effective, cover blocks are a simple yet vital component in achieving long-lasting and high-quality construction.
20mm
25mm
40mm
50mm
*These are general guidelines given based on our experience. Always refer to structural engineer for specific projects to ensure proper Cover Size
Recommened Period For Removal of Shutterinmg
The recommended period for shuttering (formwork) removal is crucial to maintaining the strength and stability of concrete structures. Shuttering should only be removed once the concrete has gained sufficient strength to safely bear its own weight as well as any additional imposed loads. Proper timing ensures structural integrity and prevents premature failures.
16 to 24 Hours
Soffit formworks to beams(props to be refixed immediately after removal of formwork) - 7 Days
Props Removal for Beam and arch
- Span length upto 6m - 14 Days
- Span length beyond 6m - 21 Days
- Span length over 9m - 28 Days
Soffit formworks to slabs(props to be refixed immediately after removal of formwork) - 3Days
Props Removal for Slab
- Span length upto 4.5m - 7 Days
- Span length over 4.5m - 14 Days
*These are general guidelines given based on our experience. Always refer to structural engineer for specific projects to ensure proper Removal OF Shuttering
Tips To Minimizing Cracks
Cracks in buildings are a common issue that may arise from factors such as thermal expansion, shrinkage, foundation settlement, or structural overload. These can vary from minor hairline cracks to serious structural cracks that may compromise safety. Preventing and minimizing cracks requires proper design, high-quality materials, and timely maintenance, ensuring long-term durability and stability of the structure.
CRACK STOP FIBRE (Building doctor brand)is a fiber reinforcement for concrete and mortar. It is a high performance micro polypropylene fiber developed as a crack controlling additive for cementitious materials.
CRACK STOP PLASTETR MESH (Building doctor brand) is a glass fibre mesh for construction joints. Can be used as reinforcement to help prevent cracking and provide better adhesion for the plaster.
- Easy for Plastering , Doesn't Require Hocking.
- Saves Money and Speed up Construction Time.
- Easy to Remove Centering Sheets.
- Stop RCC water leakage.
- Enhance Life of RCC.
- Helps in shuttering joints to improve the concrete quality.
- Hold power with concrete slabs.
- Strong Adhesive
Cement : OPC VS PPC - We Use PPC Only
OPC (Ordinary Portland Cement) and PPC (Portland Pozzolana Cement) are two types of cement commonly used in construction, but they differ in composition, properties, and applications. Here’s a detailed comparison:
The main difference between OPC and PPC cement is their composition.
- OPC:
- OPC is made by grinding a mixture of limestone and clinker, along with other materials.
- No additional pozzolanic materials.
PPC:
- It is made by grinding a mixture of limestone, clay, and fly ash.
- Pozzolanic materials enhance the cement's long-term properties
OPC:
- Gains strength quickly (higher initial strength).
- More prone to chemical attacks and less durable in aggressive environments.
PPC:
- Slower initial strength gain but develops higher strength over time.
- Better durability due to resistance to sulphate attacks and alkali-silica reactions.
- OPC:
- Produces higher heat during the setting process, increasing the risk of cracks in large pours.
- PPC:
- Lower heat of hydration, making it suitable for large-scale constructions like dams and bridges.
OPC:
- Ideal for fast-track projects where early strength is critical.
- Used in structures like high-rise buildings, roads, and precast concrete.
PPC:
- Suitable for marine structures, bridges, dams, and buildings in areas with sulphate-rich soil.
- Ideal for plastering and masonry due to its smoother finish.
OPC:
- Higher carbon footprint due to extensive limestone calcination.
PPC:
- Eco-friendlier as
OPC:
- Generally more expensive than PPC because of its higher clinker content.
PPC:
- Cost-effective, especially for general-purpose construction.
- Generally more expensive than PPC because of its higher clinker content.
Use OPC if:
- High early strength is required .
- Construction is in cold weather where curing conditions are less favorabl
Use PPC if:
- Long-term strength and durability are prioritized .
- Environmental sustainability and cost-effectiveness are important.