Chemical Analysis of Soil and Water in Riyadh — Gypsum and Sulfates Under the Microscope

Riyadh is the most gypsum-affected city in Saudi Arabia, with geological gypsum layers appearing semi-randomly at depths of 0.5 to 10 m across wide areas. ASAS Lab measures Total Gypsum Content via acid extraction and classifies per Tomlinson's chart (Low <1%, Medium 1-5%, High >5%), with vertical distribution profiles along boreholes. Groundwater analysis (often >2000 mg/L sulfates in some districts) determines cement type, minimum cement content, and waterproofing requirements per BS EN 206 and BS 8500.

Chemical Analysis
MODON

Chemical Analysis

Chemical analysis of water, soil, and aggregate covering pH, sulfates, chlorides, and TDS — to determine environmental aggressiveness on construction materials.

Included Tests

2 certified tests per international standards

Chemical analysis — Water & Soil (pH, Chlorides, Sulfates, TDS)

التحليل الكيميائي للمياه والتربة (pH، كلوريدات، كبريتات، TDS)

ASTM D516 / D512 / D4972

Unit: sample

Chemical analysis — Aggregate (pH, Chlorides, Sulfates, TDS)

التحليل الكيميائي للركام (pH، كلوريدات، كبريتات، TDS)

ASTM C114

Unit: sample

Why Choose Us

Why ASAS Lab?

ISO
International Accreditation

Approved by MODON, ACI, NRRC & KIDANA

15+
Years Experience

Over 500 completed projects across KSA

5
Branches

Makkah, Jeddah, Madinah, Riyadh, Qassim

Common Questions

FAQ About Chemical Analysis

Aggressive soil rich in sulfates or chlorides reacts with cement and steel, causing early structural deterioration. SBC 303 mandates chemical analysis in areas with saline soil or near brackish groundwater.

Need Chemical Analysis Services?

Our specialized team is ready to mobilize to your site anywhere in the Kingdom.