AMAAR Technical Services and Contracting

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From Start to Finish – We've Got You Covered!

04/10/2025

Once we build together, we never fall apart 💪🏗️

🏗️ ඔබේ සිහින ගොඩනැගිල්ල/ නිවස ඉදිකිරීමට තීරණය කරලාද?AMAAR TECHNICAL SERVICES AND CONTRACTING වෙතින්සියලුම ඉදිකිරීම් හා න...
23/06/2025

🏗️ ඔබේ සිහින ගොඩනැගිල්ල/ නිවස ඉදිකිරීමට තීරණය කරලාද?

AMAAR TECHNICAL SERVICES AND CONTRACTING වෙතින්
සියලුම ඉදිකිරීම් හා නවීකරණ සේවාවන් —
කඩිනම්ව, විශ්වාසදායකව, වෘත්තීයමය අධීක්ෂණයකින් යුතුව!

🔹 Structural Design
🔹 Estimate & BOQ
🔹 Site Supervision
🔹 Personal Consultancy

👷‍♂️ Qualified Civil Engineer අධීක්ෂණය下

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🛠️ We offer:

1️⃣ Planning & Structural Design
2️⃣ Site Clearing & Foundations
3️⃣ Superstructure Works
4️⃣ Waterproofing & Protection
5️⃣ Electrical & Plumbing
6️⃣ Finishing & Interior
7️⃣ Fixtures & Installations
8️⃣ Landscaping & Handover

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✅ Why AMAAR?

🔨 Trusted – Proven expertise
⏱️ Timely – We deliver on time
📣 Transparent – No hidden costs

📞 Call & WhatsApp: 077 747 4050
📩 Or DM now for your FREE QUOTE!

📍 Based in Anuradhapura – North Central Province

ඔබගේ ව්‍යාපෘතියක් තියෙනවද?
අදම අප අමතන්න — AMAAR එක්ක විශ්වාසයෙන් ඉදිකරමු!

📏 Substructure Measurement Guide — From Site Clearing to Oversite ConcreteUnderstanding how to properly measure each ite...
17/06/2025

📏 Substructure Measurement Guide — From Site Clearing to Oversite Concrete

Understanding how to properly measure each item in the substructure phase is key to accurate costing and effective site management. Here’s a simplified breakdown with units and how each item is calculated:

🔹 🧹 Site Clearing (m²)
▪️ Measure the area to be cleared (Length × Width).

🔹 🌱 Topsoil Removal (m³)
▪️ Area × Depth (usually 0.15m to 0.2m).

🔹 ⛏️ Excavation for Trenches (m³)
▪️ Trench Length × Width × Depth.

🔹 🧱 Blinding Concrete (m³)
▪️ Foundation Area × 0.05m thickness.

🔹 🧊 Foundation Concrete (m³)
▪️ Footing Length × Width × Depth.

🔹 🪜 RC Columns (m³)
▪️ Column Width × Depth × Height (from base to tie beam). Sum for all columns.

🔹 🧱 Tie Beams (m³)
▪️ Beam Length × Width × Depth.

🔹 ⛏️ Backfilling (m³)
▪️ Excavated Volume – Concrete Volume.

🔹 🪨 Hardcore Filling (m³)
▪️ Floor Area × 0.2m thickness.

🔹 🌾 Sand Blinding (m³)
▪️ Floor Area × 0.05m thickness.

🔹 🛡️ Damp Proof Membrane (m²)
▪️ Use total floor area.

🔹 🧱 Oversite Concrete (m³)
▪️ Floor Area × 0.1m thickness.

✅ Accurate measurement is the foundation of cost control in construction.

Understanding the ASTM C143 Slump TestConcrete is the backbone of modern infrastructure. From towering skyscrapers to cr...
17/06/2025

Understanding the ASTM C143 Slump Test

Concrete is the backbone of modern infrastructure. From towering skyscrapers to critical pavement systems, the success of any concrete structure depends heavily on one fundamental property—workability. As civil engineers, ensuring optimal workability isn't just a good practice—it’s essential to the integrity and longevity of our structures.

One of the most reliable, standardized methods to evaluate concrete workability is the ASTM C143 – Standard Test Method for Slump of Hydraulic-Cement Concrete.

🔍 What Is the Slump Test?

The slump test is a quick, practical field method for assessing the consistency of fresh concrete. In simple terms, it measures how much the concrete "slumps" or settles vertically once a conical mold (slump cone) is removed. The vertical displacement directly reflects the concrete’s workability—too low and it’s unworkable, too high and you risk segregation.

📏 Equipment Used

Slump Cone (Abrams Cone): 300 mm high, with a 200 mm base diameter and 100 mm top diameter.

Tamping Rod: 16 mm diameter and 600 mm long, with rounded ends.

Base Plate: A firm, level surface for test setup.

🧪 Test Procedure Overview

1. Fill the cone in three equal layers, tamping each layer 25 times.

2. Remove the cone vertically and measure the settlement (slump).

3. Report the slump to the nearest 5 mm.

4. If the concrete shears off (collapses to the side), classify it as a shear slump and repeat the test.

This simple test provides immediate insight into whether the mix is suitable for the job at hand.

📊 Acceptable Slump Ranges (Typical)

Application Slump Range (mm)

Pavement/Mass Concrete 25 – 75 mm
Beams, Slabs, Walls, Columns 50 – 100 mm
Pumped Concrete 75 – 150 mm

Selecting the correct slump range is not arbitrary—it is critical for ease of placement, compaction, and to avoid defects like honeycombing or segregation.

🎯 Why This Test Matters in Practice

Site Readiness: On-site slump testing helps identify unsuitable mixes before placement, avoiding rework and saving costs.

Quality Control: Enables consistent monitoring during batching and transportation.

Performance Assurance: Ensures concrete meets the design expectations for flowability and strength development.

In the field of civil engineering, mastering the basics like the ASTM C143 slump test allows engineers to build safer, more durable, and cost-effective structures.

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New Town

Opening Hours

Monday 09:00 - 17:00
Tuesday 09:00 - 17:00
Wednesday 09:00 - 17:00
Thursday 09:00 - 17:00
Friday 09:00 - 17:00
Saturday 09:00 - 17:00

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