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In-Depth Analysis of Cost and Quality Management of Ready-Mixed Mortar From Quantity Loss to Stable Project Delivery Ready-mixed mortar has become a modern replacement for site-mixed mortar, offering clear advantages in construction quality, efficiency, and environmental performance. However, in practical applications, its higher unit price, complex supply chain, and invisible consumption make cost and quality control more challenging. Industry experience shows that without systematic management, actual mortar consumption often exceeds theoretical quantities, leading to cost overruns of 15% or more . Effective control therefore requires full-process management—from production and supply to construction and acceptance . Cost Control Focus: Addressing Quantity Loss The key cost issue in ready-mixed mortar projects is not the material price itself, but quantity loss , where actual consumption exceeds contractual or design values. This problem mainly originates from material supply...

  Introduction | Why Cement Plastering Often Fails In real construction projects, debonding, hollow spots, cracking, weak edges, and uneven color are among the most common plastering defects. In most cases, the issue is not the material itself, but poor substrate preparation, incorrect application sequence, excessive thickness, or insufficient curing . This article provides a clear and practical guide to cement mortar plastering , covering different substrate types and key quality control points to help you achieve durable, defect-free results. 1. Standard Plastering Workflow Process Flow: Joint sealing → Surface cleaning → Pre-wetting → Vertical alignment → Screeding → Base coat → Grid strips → Finish coat → Curing 2. Plastering Techniques by Substrate Type 2.1 Concrete Substrates Key Risk: Smooth surface leading to poor adhesion Best Practices: Always roughen smooth concrete surfaces (mechanical or slurry bonding layer) Apply a reliable bonding layer before plastering Apply base...

  1. Improper Application — The No.1 Cause of Tile Adhesive Failure (1) Wrong Mixing Method = Adhesive Performance Destroyed Common Symptoms: Dries too fast → thickens before application Dries too slow → stays soft for a whole day Poor bonding strength Causes: Insufficient mixing Wrong water ratio High temperature speeding up drying Low temperature/humidity slowing curing Correct Method: Add water first, then powder; mix twice with 3–5 min rest Follow exact water ratio Never add cement or sand (destroys formula → hollowing & debonding) (2) Wrong Tiling Technique — Dot-Mounting Is the Biggest Killer Symptoms: Hollow sound Edges lifting Whole tile falling off with backside clean Causes: Dot-mounting or thick-bed method → insufficient contact area Dust or release agent on tile backside Correct Method: Must use Thin-Bed Method + Double-Sided Buttering Coverage rate must be ≥90% Clean tile backs before installat...

The Real “Secret” Is Full-Process Control** Issues such as powdering, bubbling, cracking, yellowing, and peeling may look different on the surface—but they all stem from one root cause: lack of a systematic approach in putty application. There is no single “magic trick.” The only truly effective method is to follow one core principle: — 70% depends on substrate and materials, 30% on workmanship. When substrate, materials, processes, and environment are controlled as one integrated system, most problems can be eliminated at their source. 1. Build from the Base: Substrate Preparation Is Everything 1) Clean + Solid: The foundation must be 100% reliable The wall must be free of dust, oil, and all loose particles. Old, weak coatings must be removed completely. Holes and cracks should be repaired with high-quality leveling mortar to ensure a firm, even substrate. If the base is weak, every step afterward becomes meaningless. 2) Pre-wetting / Sealing: Essential for preve...