Dissolvable Cement Additive Bags | Safer, Faster, More Accurate Dosing for Construction Sites
Manual emptying of cement additives creates three problems on every worksite. Workers breathe dust and touch chemicals. Bags tear and spill, wasting expensive materials. Scooping and measuring leads to inconsistent batches and rework.
Zeropac's dissolvable cement additive bags solve all three. Pre-fill bags with the exact dose you need. Seal them. When you reach the site, throw the entire unopened bag into the mixer with your cement and water. The bag dissolves completely within standard mixing time, releasing the additive with zero residue, no plastic waste, and no team exposure.
How Dissolvable Cement Additive Bags Work
The Old Way Creates Problems
Most construction teams use one of two methods for cement additives. Paper bags tear during transport and require manual emptying at the mixer. This exposes workers to dust and chemicals. Plastic containers need scooping or pouring, which wastes product through spills and creates dosing errors when workers eyeball measurements.
Both methods slow down mixing operations. Someone has to open the container, measure or pour the additive, then dispose of packaging. That person handles the chemical directly. If they dose incorrectly, the entire batch may fail specifications.
The Dissolvable Bag Method Removes These Issues
Fill Zeropac's 530mm x 350mm dissolvable flat bags with your cement additive before arriving on site. The PVOH film is three times stronger than standard LDPE plastic, so bags stay intact during storage and transport. The film has a five-year shelf life and remains stable until it contacts warm water.
When mixing time arrives, add cement and water to your mixer as usual. Drop the sealed bag directly into the running mixer. You never open it. The bag dissolves completely as the mixer runs, releasing the additive evenly throughout the batch. No residue remains. No microplastics form. The PVOH film biodegrades naturally.
Three Ways Dissolvable Bags Improve Site Operations
Protect Your Crew from Chemical Exposure
Cement additives include plasticizers, accelerators, retarders, and air-entraining agents. Many cause skin irritation or respiratory issues with repeated exposure. Manual handling puts your crew in direct contact with these chemicals every time they mix a batch.
Dissolvable bags eliminate this contact. Workers never touch the additive. They never breathe dust from pouring or scooping. This reduces workplace health risks and supports WHS compliance without adding extra steps to your workflow.
Stop Wasting Material Through Spills and Incorrect Dosing
Manual measuring leads to two types of waste. Spills happen when workers pour from bulk containers or tear open paper bags. Incorrect dosing happens when workers estimate amounts instead of weighing precisely.
Pre-filled dissolvable bags contain the exact dose needed for each batch. This eliminates guesswork and ensures consistency across all mixes. When every bag contains the same amount, every batch meets specifications. You stop throwing away concrete that failed quality checks due to dosing errors.
Speed Up Mixing Operations
Opening bags, measuring additives, and cleaning up spills takes time. Your crew repeats this process for every batch throughout the day. Those minutes add up across a project.
Dissolvable bags reduce mixing time to three steps. Add cement. Add water. Drop in the sealed bag. The mixer does the rest. Your crew spends less time on additive handling and more time on productive work.
Technical Specifications: Built for Commercial Construction
PVOH Film Performance
Zeropac's dissolvable bags use PVOH film, not PVA. This distinction matters. PVOH provides three times the strength of standard LDPE plastic while maintaining complete water solubility. The film remains intact during storage, transport, and handling. It only dissolves when exposed to warm water above 40 degrees Celsius.
The dissolution happens within your standard mixing time. As the mixer runs, the film breaks down and releases the additive evenly. No fragments remain. The PVOH biodegrades naturally without creating microplastics or toxic residue.
Bag Dimensions and Capacity
The 530mm x 350mm size suits small to medium batch mixing operations. This dimension accommodates the typical dose range for most cement additives used in commercial construction. The flat bag design allows easy stacking and storage in your site containers or vehicles.
Storage and Shelf Life
Sealed bags maintain a five-year shelf life under normal storage conditions. Keep them in a cool, dry location away from direct moisture. The PVOH film remains stable until it contacts water. This long shelf life lets you pre-fill bags in bulk and store them for future projects without quality degradation.
Real Benefits for Site Supervisors and Procurement Teams
Reduce Disposal Costs
Traditional packaging creates waste. Paper bags go to landfill. Plastic containers need disposal or cleaning for reuse. Both options cost money and create environmental compliance issues.
Dissolvable bags leave nothing behind. The film biodegrades completely during mixing. You eliminate packaging waste from your site operations. This reduces disposal fees and simplifies your environmental management.
Improve Batch Consistency
Quality control starts with accurate dosing. When workers manually measure additives, human error creates batch-to-batch variation. Some batches get too much additive. Others get too little. Both scenarios compromise concrete performance.
Pre-filled bags standardise every batch. Each bag contains the same precise amount. This consistency improves concrete quality and reduces failed batches. Your QA process becomes simpler because dosing variability drops to zero.
Simplify WHS Compliance
Chemical exposure creates workplace health obligations. You must provide PPE, training, and exposure monitoring. Manual handling of cement additives increases your WHS administration and risk.
Dissolvable bags reduce these requirements. Workers never contact the chemicals. This simplified handling reduces your compliance burden while improving actual safety outcomes for your crew.
Common Questions About Dissolvable Cement Additive Bags
Do the bags work in cold weather conditions?
The bags require water temperature above 40 degrees Celsius for dissolution. In cold weather mixing, the mechanical action and heat generated during mixing typically reaches this temperature. The bag dissolves within standard mixing time regardless of ambient temperature because the mixing process creates sufficient warmth.
Will dissolved film affect concrete properties?
No. The PVOH film biodegrades completely and leaves no residue that affects concrete curing, strength, or durability. The dissolved film integrates harmlessly into the mix. Third-party testing confirms no negative impact on concrete performance.
Can you use these bags with all types of additives?
The bags work with powdered and granular additives including plasticizers, accelerators, retarders, and air-entraining agents. The PVOH film provides a moisture barrier during storage and dissolves reliably during mixing. If you use liquid additives, contact Zeropac to discuss compatibility.
How do you fill and seal the bags?
Fill bags using your existing additive handling equipment. Fold the open end to close or use a heat sealer for a more secure closure. The strong PVOH film tolerates standard packaging equipment. Most operations pre-fill bags in batches during off-peak hours for use throughout the week.
What about equipment compatibility?
Dissolved PVOH leaves no residue in your mixer, pumps, or lines. The film breaks down completely during mixing. You clean your equipment the same way you always have. No additional maintenance or special procedures are required.
Make the Switch to Safer Cement Additive Handling
Dissolvable cement additive bags remove three major site issues. Your crew stops handling chemicals directly, reducing exposure and WHS risk. Pre-filled bags eliminate dosing errors and material waste. Faster mixing operations improve productivity across your project timeline.
The bags cost less than the combined expense of wasted additives, failed batches, additional PPE, and disposal fees. The PVOH film provides the strength you need during transport while dissolving completely when you need it to.
Order Dissolvable Cement Additive Bags from Zeropac
Zeropac delivers across Australia from our Blacktown facility. Sydney metro orders receive free delivery. Regional orders ship quickly with tracking.
Request a free sample to test the bags with your specific additives and mixing equipment. Our team can discuss your volume requirements and provide quantity pricing.
Contact Zeropac at (02) 9161 1633 or email info@zeropac.com.au. We answer technical questions about dissolution performance, compatibility, and storage requirements.
You can also browse our full range of dissolvable packaging solutions for other site applications including waste handling and contaminated material containment.
Stop exposing your crew to cement additives. Stop wasting material through spillage and incorrect dosing. Switch to dissolvable bags that work within your existing mixing process while improving safety, accuracy, and efficiency.
Related Products: Zeropac also manufactures dissolvable bin liners for contaminated waste handling and dissolvable laundry bags for infection control applications.