customized aluminium paste for aac block

customized aluminium paste for aac block

02-09-2026

Customized Aerated Aluminum Paste for High‑Quality AAC Blocks

Overview

Aluminum paste is the critical foaming raw material in the production of autoclaved aerated concrete blocks (AAC blocks). It directly controls the foaming expansion of green bodies, pore structure, mechanical strength and surface quality of finished blocks. Our company provides tailor‑made aerated aluminum paste matched to your production line conditions and formulation system, enabling you to manufacture AAC blocks with perfect performance and appearance.

The attached photo shows the curing section of AAC production. After foaming and molding, green bodies enter static curing. The performance of aluminum paste exerts a decisive influence on green‑body formation and final product quality.

Core Advantages of Our Custom Aerated Aluminum Paste

  1. Precisely‑controlled gas generation curveWe adjust the activity of aluminum paste according to your slurry temperature, lime quality, mixing cycle and mold dimension. The gas‑generating rate perfectly matches the slurry thickening speed. Stable and smooth foaming avoids gas trapping, sudden out‑gassing, mold collapse, bubbling and cracking defects.

  2. Uniform flake aluminum particles for ideal pore structureCustom‑graded particle size ensures excellent dispersion in slurry. Hydrogen gas releases evenly during chemical reaction. Fine, round, closed and isolated pores are formed inside AAC blocks. Few large holes or connected voids occur. Finished blocks feature smooth cut surfaces without honeycomb defects, higher compressive strength and lower water absorption.

  3. Stable paste for easy operationWater‑based aluminum paste shows fine texture with minimal sedimentation and phase separation. Convenient for metering and feeding. Direct addition into slurry without extra grinding work. It reduces manual operation fluctuation and guarantees consistent quality batch‑to‑batch.

  4. Compatibility with various raw‑material systemsSuitable for both fly‑ash AAC and sand AAC formulations. Key parameters of aluminum paste can be modified to fit your existing process. Major equipment modification is not required for producing premium‑grade AAC blocks.

Performance of AAC Blocks Made with Our Custom Aluminum Paste

✅ Green body: Stable foaming height. Flat top surface after static curing. Free of pits, bulges and cracks. Complete edges and corners after demolding with low breakage rate. ✅ Cutting: Uniform hardness across green bodies. No chipping or edge breaking during cutting; neat and smooth cutting surface. ✅ Finished blocks: ‑ Dense and homogeneous internal pores, scarce large voids ‑ Stable compressive strength and consistent bulk density ‑ Sharp regular edges, uniform color, greatly improved yield rate ‑ Controlled shrinkage property to prevent later‑stage block cracking

Custom Service Specification

Key indicators including aluminum activity, particle size distribution, solid content and gas‑generating time are optimized based on your real‑site production data.

Required information for customization: production type (fly‑ash AAC / sand AAC), slurry temperature, mixing cycle, mold size, and existing production problems. We optimize formulations to match your working conditions.

Summary

High‑performance AAC blocks rely heavily on qualified aluminum paste. Standard off‑the‑shelf aluminum paste can hardly adapt to unique raw‑material and process conditions of every factory. Our customized aerated aluminum paste balances foaming and thickening for your whole production line. It fundamentally solves common failures such as mold collapse, poor pore structure, cracking and chipping. Stable production of high‑quality AAC products reduces material loss and improves economic benefits for manufacturers


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