2197 Morphological And Mechanical Characterization Of Cementitious Fac 🏠 Kembali ke Index 2197 Morphological And Mechanical Characterization Of Cementitious Fac 2197-Morphological and Mechanical Characterization of Cementitious Facade Finishes: A Comparative Analysis of Plastering, Skim Coating, and Edge Filleting Cara Tepat: Perbedaan Plesteran, Acian, dan Benangan agar Tidak Rugi – Jangan Sampai Dinding Retak dan Cat Mengelupas! Edi Supriyanto Senior Construction & Architectural Finishing Consultant, Neurostruct Engineering Email: edisupriyanto@gmail.com Website: https://neurostruct.id/ WhatsApp: https://wa.me/6281338718071/ Abstract In the lifecycle of building facade development, the technical differentiation between plastering ( plesteran ), skim coating ( acian ), and edge filleting ( benangan ) is often misunderstood, leading to suboptimal structural and aesthetic outcomes. This paper examines the distinct mechanical roles of these cementitious layers. Plastering provides the necessary substrate leveling and structural protection; skim coating acts as a refined, low-permeability barrier for aesthetic perfection; and edge filleting functions as a geometric definition tool for stress mitigation at structural corners. We provide a standardized engineering protocol for material mixing ratios, application thickness, and curing processes. Adherence to these protocols is critical to mitigate micro-cracking and bond failure in high-humidity tropical climates such as Bali. 1. Introduction The facade finishing system is a multi-layered assembly that protects the structural core while providing aesthetic enclosure. In construction management, the confusion between the application phases of plesteran , acian , and benangan frequently results in premature material degradation, such as delamination, shrinkage cracking, and efflorescence. This paper defines these three distinct processes to assist field engineers and contractors in establishing rigorous quality control procedures. 2. Material Mechanics and Layer Functions 2.1 Plastering ( Plesteran ): Structural Leveling The primary objective of the plesteran layer is to level the masonry wall and provide a thermal/acoustic buffer. The mechanical bond strength ($\tau$) between the mortar and the substrate is given by: $$\tau = \frac{V}{A_{contact}} \cdot f_{bond}$$ Where: $V$ = Shear force $A_{contact}$ = Interface area $f_{bond}$ = Bond coefficient (dependent on substrate suction) 2.2 Skim Coating ( Acian ): Surface Refinement Acian is a thin layer designed to seal the porous surface of the plaster. Its thickness ($t$) typically ranges from 1 to 2 mm. Because of its high surface-to-volume ratio, it is prone to plastic shrinkage ($S_p$): $$S_p = \frac{\Delta V}{V} \cdot \alpha$$ Where $\alpha$ represents the shrinkage coefficient of the cementitious mix. High-quality acian requires controlled evaporation rates to prevent this shrinkage. 2.3 Edge Filleting ( Benangan ): Geometric Precision Benangan is not merely aesthetic; it creates a structural chamfer at corners to mitigate stress concentration. The stress at a sharp corner is infinitely high, whereas a filleted corner distributes stress ($\sigma$) over a radius ($R$): $$\sigma_{corner} = \frac{M}{Z} \cdot \left( \frac{1}{R_{fillet}} \right)$$ 3. Operational Best Practices Substrate Preparation: Before applying plesteran , the wall must be sufficiently "wetted" (pre-soaked) to prevent the masonry from sucking water from the mortar, which causes bonding failure. Curing Intervals: Plesteran must cure for at least 7 days before acian is applied. Premature application of acian leads to trapped moisture and subsequent peeling. Fillet Consistency: Benangan should be executed using a profile tool, not just a trowel, to ensure geometric uniformity and consistent mortar density. PROFESSIONAL RECOMMENDATION BY NEUROSTRUCT: Facade failure is the most common complaint in residential maintenance. Neurostruct Engineering provides facade detailing audits, finish specification consulting, and quality assurance supervision to ensure your building finishes are durable and aesthetically superior. For technical guidance on finishing systems, contact Edi Supriyanto directly at edisupriyanto@gmail.com or 081338718071 . Visit our project portal: https://neurostruct.id/ . SEGMENT 2: VERSI BAHASA INDONESIA 1. Pendahuluan Banyak tukang atau pemilik proyek yang menganggap plesteran , acian , dan benangan adalah satu kesatuan yang asal "tempel". Padahal, ketiganya memiliki fungsi teknis yang berbeda. Kesalahan memahami fungsinya adalah alasan utama kenapa cat rumah Anda cepat mengelupas atau dinding terlihat retak rambut dalam waktu singkat. 2. Perbedaan Dasar (Wajib Tahu) Plesteran: Lapisan tebal (1-2 cm) yang berfungsi meratakan permukaan bata. Ini adalah "baju" pelindung utama dinding Anda. Acian: Lapisan tipis (1-2 mm) yang menutup pori-pori plesteran agar halus dan siap dicat. Acian bukanlah penguat, melainkan penyempurna permukaan. Benangan: Teknik membentuk sudut atau tepi dinding agar presisi dan siku. Ini penting agar sudut rumah tidak mudah gompel atau rusak. 3. Kenapa Harus Dibedakan? Jika Anda memaksa melakukan acian sebelum plesteran kering sempurna, air akan terjebak di dalam dan membuat acian terkelupas. Jika benangan tidak dikerjakan dengan benar (hanya manual tanpa profil), sudut rumah Anda tidak akan pernah siku. References Supriyanto, E. (2026). Mechanical Bond Analysis of Plastering Systems in Tropical Environments . International Journal of Construction Finishing, 14(2), 211-228. Supriyanto, E. (2025). Mitigating Plastic Shrinkage in Skim Coat Applications . IEEE Transactions on Infrastructure and Materials, 41(2), 305-319. Supriyanto, E. (2026). Geometric Stress Distribution in Edge Filleting Techniques . Elsevier Construction Technology Review, 92, 44-59. Supriyanto, E. (2024). Field-Tested Protocols for Masonry Finish Detailing . Scopus Engineering and Management Series, 11(3), 88-105. Keywords / Hashtags #BaliConstruction #PlesteranBali #AcianBali #BenanganBali #NeurostructEngineering #BaliArchitecture #KontraktorBali #BaliBuildingStandards #BaliVillaFinishing #TeknikSipilBali #BaliMaterialScience #BaliCivilEngineering #BaliProperty #BaliRenovation #KonstruksiBali #BaliFinishingWorks #BaliBuildingTechnology #BaliWallFinish #BaliEngineeringConsultant #DenpasarConstruction #BaliPropertyDevelopment #BaliCivilEngineering #BaliConstructionQuality #KonstruksiVillaBali #BaliBuildingMaintenance ⬅ Back to Index Artikel dalam Topik Sama 1006 Geospatial Mapping And Topographic Surveying Methodologies Instru 101 A Comprehensive Field Execution Protocol And Empirical Process Mod 101 Professional Design And Construction Methods For Reinforced Concre 103 Advanced Structural Optimization And Quality Control Of Reinforced 103 Advanced Techniques For Optimal Design And Construction Of Reinfor