Research Article

Investigation of the Application of Various Water Additive Ratios on Unconfined Compressive Strength of Cement-Stabilized Amorphous Peat at Different Natural Moisture Contents

Table 1

Summary of tropical peat chemical stabilization study by some researchers.

ReferenceOrigin and sampling depthPeat classificationStabilizerStabilization methodCuring method and curing period

[7]Banting, Bukit Changgang and Dengkil, SelangorH4–H7OPC 5–15%Compaction with MDD and OMCWater curing 7, 14, 28 days
0.5–1 mlime 5–25%

[9]Kampung Jawa, MalaysiaH4–H5OPC 15, 30, 50% and polypropylene fibers 0.1, 0.15, 0.25% (of natural wet soil)Amount additive added is percentage additive of wet soil hand-mixedAir-curing 28, 90, 180 days
0.05–0.6 m

[10]Kampung Sri Nadi, Klang, Selangor Darul Ehsan, MalaysiaH4Cement and slag 300, 250, 200 kg/m3 (25–75%, 50–50%, 75–25%) + 950 kg/m3 siliceous sandAmount additive added is percentage additive of wet soil mixer mixedWater curing with pressure 9 kPa 7, 14, 28 days
1 m

[11]Sri Nadi Village, Klang, Selangor, MalaysiaFibrous peat300 kg/m3 binder + 25% sand, w/o and w/4% accelerator (of wet soil mass)Amount additive added is percentage additive of wet soilWater curing with pressure 100 kPa 7 days
OPC specially manufacture cement: Walcrete, Avancrete, Phoenix, MascreteKitchen mixer mixed
Cement accelerator: Sodium chloride and calcium chloride

[12]Matang, Sarawak, MalaysiaH3–H4OPC 5–40%Compaction with MDD and OMCWater curing 7, 14, 28 days
0.4–0.8 mFA 5–30%
QL 2–8%

[13]Matang, SarawakH3OPC 5–20%, quick lime 5–20%, fly ash2-8% (of soil dry mass)Compaction with MDD and OMCWater curing
0.4–0.8 m7, 14, 28 days

[3]Tropical peatH485% cement, 15% bentonite (5%, 10%, 15%)Compaction with MDD and OMCWater curing 7 and 14 days

[14]Kp Tumbuk darat, Sepang, Selangor, MalaysiaH5–H610, 20, and 40% OPC (of soil dry mass)Compaction with MDD and OMCAir-curing 3 and 28 days
1 m

MDD, maximum dry density; OMC, optimum moisture content; OPC, ordinary Portland cement; FA, fly ash; QL, quick lime.