Soil Core Physical Evaluation At A Golf Course In Singapore

Sample Textural Analysis *ISSS Textural Class pH Sand Silt Clay Upper Layer (Black Soil) 65.4 26.4 8.2 Sandy Loam 6.49 Under Layer (Red Soil) 40.4 41.6 18.0 Clay Loam 5.18

ISSS: Method of International Society of Soil Science

Sample Permeability (mm/hr) Non-Capillary Porosity (%) Total Porosity (%) Under Layer Soil 0.1 1.0 52.7 10% Isolite CG 2.1 8.9 59.7 15% Isolite CG 15.5 10.3 60.3 20% Isolite CG 46.8 13.3 63.4

Testing performed by ISOLITE TECHNICAL LABORATORY

Analysis Report by Brookside Laboratories, Inc.

USGA Approved Physical Analysis USGA Specification Geotech Tests Report Data Comparison Table (compiled by Isolite Japan)

Table-1 : Table Of Physical Characteristics

Subjects CG2 Used for 7 years Sand Bulk Density 0.56 0.55 Mono-granule pressure brittle strength (kg) 3.2 3.0 Hydro-porosity Ratio (%) 60.2 60.0 pH 6.67 6.58 Chemical Components (%) 77.9 78.1 11.6 11.3 5.4 5.2 2.3 2.2

Microphotography after 7 yrs Click to see larger image

These are the results of the study of physical characteristics of ISOLITE CG that was obtained from the soil constructed seven years ago, in order to study the chronological change of ISOLITE CG. The test results of ISOLITE CG, from street planting after seven years in Nagoya City. 1. Construction Site: Pedestrian Walkway Plant, Road 81 Tochi, Minatoku, Nagoya City. 2. Construction Period: 12/87. 3. Construction Method: Soil at 30cm thick and ISOLITE CG (20% mixed by volume). 4. Study Period: 10/94. 5. Subjects Tested: Physical Characteristics Comparison Test, Electron Microscope Observation. 6. Results Tested: Table of Physical Characteristics (Table-1) 7. Summary - The results of studying ISOLITE CG obtained from soil planted seven years ago did not show any chronological change such as physical characteristics and clogging of porous holes.

ISOLITE CG TEST DATA Percolation Rate Saturated permeability coefficient (mm/hr)

Soil Type No Treatment ISOLITE CG Zeolite Perlite Vermiculite 10% 20% 20% 20% 20% Sandy Soil 504 720 1400 8.6 50 68 Clay Soil 0.5 76 100 0.4 8.6 6.8

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