PMTES - Petergo Marpaung Tes

PMTES - Petergo Marpaung Tes Ultrasonic Pulse velocity UPV test, Hammer test, Rebar scan profometer

Soil Investigation, Geotech, Sondir, Drilling Boring log SPT, CBR, DCPT
Forensic Structure, Building Audit, Asessment, testing bangunan lama, eks kebakaran, SLF sertifikat laik Fungsi. PMTES-PETERGO
TESTING:
Soil test, Building Audit / Forensic Structure
Untuk pengumpulan data struktur baik SLF, Assessment, Redrawing, concrete test existing, Steel test existing, dll
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1. Building Audit forensik struktur; upvtest (ultrasonic pulse velocity), rebarscaning, halfcell, carnonationtest, hammertest, ultrasonic, thermography beton permukaan / delaminasi,keseragaman permukaan , kebocoran dinding / lantai, cracktest, test kedalamana crack, test honeycom (keropos),GPR Beton / Rebar Scan , GPR / Georadar soil, pipe,Ground dll,
Pull off, Pull out,

2. Soil test; tes tanah, sondir, boring log, SPT, laboratorium tanah, CBR, Sandcone, DCPt, drilling, bore pile, boring soil,

3. Jasa civil engineering, struktur, building audit, asessment, forensic struktur, analisis : gedung, mrt, lrt, jembatan, tunel dll

pmtes.blogspot.com
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KUNJUNGI :

ULTRASONIC PULSE VELOCITY / UPV TEST KLIK http://pmtes.blogspot.com/2018/02/ultrasonic-pulse-velocity-upv.html



REBAR-SCANER / PROFOMETER / PROFOSCOPE / COVERMETER / MAPPING REBAR KLIK http://pmtes.blogspot.com/2018/02/r-bar-scaner-profometer-covermeter.html


KARBONASI / CARBONATION TEST KLIK http://pmtes.blogspot.com/2018/02/karbonasi-carbonasi.html


HALFCELL / POTESI KOROSIF PADA BESI BETON KLIK http://pmtes.blogspot.com/2018/02/halfcell-corosi-besi-pada-beton.html


HARDNESS / BRINELL / ROCKWELL / KEKERASAN KLIK http://pmtes.blogspot.com/2018/02/hardness.html


COREDRILL + COMPRESSION -COMPRESSIVE STRENGTH TEST KLIK http://pmtes.blogspot.com/2018/02/concrete-testing.html


HAMMER TEST - MUTU BETON KLIK http://pmtes.blogspot.com/2018/02/steel-testing-ndt.html


SONDIR - CPT - TES TANAH - SOIL TEST KLIK https://pmtes.blogspot.com/2019/01/sondir-cpt-tes-tanah-soil-test.html

BORING LOG - DRILLING - SPT -DEPTH BORING - BORING HOLE - TES TANAH - SOIL TEST KLIK https://pmtes.blogspot.com/2019/01/boring-log-drilling-spt-depth-boring.html

16/07/2026

Brinell / Pengujian Kualitas Baja
Pengujian kekerasan Brinell adalah sebuah pengujian kekerasan metal yang dapat menyajikan informasi yang bermanfaat mengenai material metal. Informasi yang disajikan dapat dikorelasikan ke kuat tarik, ketahanan, daktalitas atau karakteristik material metal lainnya dan pengujian ini dapat juga berguna sebagai kontrol kualitas dan sebagai seleksi material.
Nilai kekerasan (HL) dihitung dari rasio kecepatan tumbukan dan rebound. Nilai kekerasan (HL) ini kemudian dapat diubah oleh perangkat lunak untuk menampilkan konvensional nilai kekerasan konvensional dalam skala HRC, HV, HB, HL, Bahkan Metode Equotib Sudah langsung mengeluarkan dalam Satuan MPA (Tensile Strength).
Standar yang digunakan untuk pengujian kekerasan baja adalah ASTM A956 (Leeb) dan ASTM E 140-97: Standart hardness conversion Tabels for metals (ASTM E10- 08/Brinell Test: Standart hardness conversion Tabel for metals.

Cara Kerja Pengujian Brinell
Prosedur pengujian dengan langkah-langkah berikut:
1. Persiapan Permukaan: Permukaan logam yang diuji harus rata, halus, serta bersih dari debu, kerak, atau karat.
2. Penekanan Beban: Bola indentor ditekan ke material secara tegak lurus.
3. Waktu Tahan (Dwelling Time): Beban ditahan selama periode waktu tertentu, umumnya sekitar 10 hingga 30 detik, untuk memastikan aliran plastis material telah berhenti.

Dibandingkan metode lain seperti Rockwell atau Vickers, metode Brinell memiliki keunggulan dan karakteristik tersendiri:
• Sangat Cocok untuk Material Heterogen: Karena menggunakan ukuran bola indentor yang besar, lekukannya mencakup area yang luas. Hal ini dapat merata-ratakan ketidaksempurnaan lokal pada struktur mikro material (seperti batas butir kasar atau inklusi).
• Ideal untuk Material Kasar: Sangat direkomendasikan untuk menguji besi cor (cast iron), produk tempa (forging), komponen hasil pengecoran, serta baja struktural berukuran besar.
• Bukan untuk Material Tipis atau Sangat Keras: Metode ini tidak cocok untuk lembaran logam yang sangat tipis karena risiko jebol (bulging), ataupun material super keras yang justru dapat mendeformasi bola indentornya

Jika Anda Berencana Melakukakan pengujian Struktur Baja Konstruksi, Segera Info Kami :
• Apa jenis material yang ingin Anda uji? (Misalnya: besi cor, aluminium, atau baja karbon?)
• Berapa perkiraan ketebalan sampel material tersebut?
• Apakah Anda membutuhkan pengujian ini untuk keperluan kontrol kualitas produksi atau audit struktur bangunan?

Untuk pemahaman mendalam tentang prosedur teknis dan membutuhkan estimasi biaya atau layanan pengujian di Indonesia, Anda bisa berkonsultasi.
📞 Contact / wa.me/+6281213288147 📧 [email protected] www.petergo.id

29/05/2026
a detailed technical breakdown of an expansion joint system, specifically designed for a polyacrylate terrazzo flooring ...
25/12/2025

a detailed technical breakdown of an expansion joint system, specifically designed for a polyacrylate terrazzo flooring application. Expansion joints are critical in construction as they allow structures to expand and contract with temperature changes without cracking the surface material.
The image is split into two parts: a 3D perspective view (top) and a cross-section detail (bottom).

1. TOP SECTION: 3D PERSPECTIVE VIEW
This view shows the layered assembly of the floor and how the joint integrates with the finish.
• Polyacrylate Terrazzo Topping: The visible decorative floor surface. It is a thin-set epoxy or resin-based system mixed with marble or glass chips.
• Divider Strip: A metal profile (likely aluminum or stainless steel) that acts as the "edge" for the terrazzo. It ensures a clean, straight line and contains the topping.
• Flexible Sealant: Applied between the divider strips to absorb movement.
• Primer: A dark layer visible beneath the terrazzo, used to ensure a strong bond between the topping and the concrete slab.
• Rigid Insulation: In this specific diagram, a vertical layer of insulation is shown between the two concrete slabs to prevent thermal bridging.

2. BOTTOM SECTION: CROSS-SECTION DETAIL
This "cut-through" view reveals the internal components hidden beneath the floor level.
• Expansion Joint Cover Flushed with F.F.L: This shows the metal assembly level with the Finished Floor Level (F.F.L.), ensuring a smooth walking surface.
• Backer Rod: A cylindrical foam piece inserted into the gap. It provides a "backing" for the sealant so that the sealant only bonds to the sides of the joint, allowing it to stretch properly.
• Flexible Sealant: Layered over the backer rod to create a water-tight and flexible gap.
• Aluminum Water Stopper: A metal profile embedded deeper in the joint. Its primary purpose is to catch and redirect any water that might seep through the upper layers, protecting the structure below.
• Fiber Board: The primary filler for the expansion gap between the two main concrete slabs. It is compressible, allowing the heavy concrete slabs to move toward each other without crushing.

SUMMARY OF FUNCTION
The system works as a complete movement solution. The Fiber Board and Sealant handle the physical shifting of the building, while the Divider Strips and Terrazzo Topping provide the aesthetic finish. The Aluminum Water Stopper acts as a final safety measure against moisture.
• Note: Proper installation of these joints is essential in large commercial spaces like airports or malls where concrete slabs cover vast areas.

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