Chaiyaput, Salisa

Preferred name

Chaiyaput, Salisa

Alternative Name

CHAIYAPUT, SALISA

Chaiyaput, S.

Chaiyaput, Salisa Fern

Main Affiliation

School of Engineering

salisa.ch@kmitl.ac.th

Now showing 1 - 10 of 18

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Integrating Multiple Linear Regression Analysis and Machine Learning Models to Predict the Bearing Capacity of Strip Footings on Sandy Clay Slopes
(2025-02-01)
Mase, Lindung Zalbuin
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Misliniyati, Rena
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Muharama, Nia Afriantialina
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Supriani, Fepy
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Ahmad, Debby Ariansyah
This paper presents Multiple Linear and Machine Learning models of bearing capacity for strip footings at sandy clay slopes subjected to vertical loads. Several parameters are considered in the analysis, including footing width, embedment depth, unit weight, slope angle, internal friction angle, and soil cohesion. A finite element analysis is conducted to assess the impact of these factors. Additionally, an empirical prediction for bearing capacity is proposed. Machine learning techniques utilising various models are employed to analyse performance outcomes, with the Shapley Additive Explanations (SHAP) method used to quantify the contribution of each parameter. The results show that the empirical formulation for predicting ultimate bearing capacity can be effectively applied in engineering practice. Significantly, the findings indicate that the XGBoost model yields the most precise predictions of bearing capacity. The primary parameters influencing bearing capacity include embedded depth, width, unit weight, and internal friction angle, whereas vertical load and unit weight have a minimal impact.
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Mapping the Underground: Geotechnical Physical Properties Insights from Bengkulu City
(2026-01-01)
Mase, Lindung Zalbuin
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Kamal, Thomas Mustafa
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Putri, Melly Zuhadjar
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Misliniyati, Rena
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Chaiyaput, Salisa
This study presents a three-dimensional engineering geology model of soil-layer physical parameters in Bengkulu City, Indonesia. The model provides an integrated understanding of the subsurface profile to support construction design and planning. Three-dimensional modelling is applied to identify subsurface geological layers and visualize key soil physical properties using colour-scaled parameter distributions. The analysed parameters include shear wave velocity, plasticity index, saturated unit weight, bulk unit weight, dry unit weight, water content, and degree of saturation. Data interpolation is performed using the Inverse Distance Weighting method, which is suitable for estimating parameter continuity within layers in 3D geological modelling. The resulting model identifies five generalised subsurface layers: sand, clay, soft rock, medium rock, and hard rock. Interpolated parameter variations are illustrated through geological profiles and Probability Density Function plots, enabling more straightforward interpretation of value distributions across the study area. Overall, the findings offer practical insights and essential baseline information for engineers and planners conducting soil investigations in Bengkulu City.
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Environmental Effects on the Interface Shear Strength of Geomembrane made from Rubber Compound Sheet
(2025-01-01)
Chaiyaput, Salisa
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Liangsunthonsit, Anubud
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Mase, Lindung Zalbuin
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Ayawanna, Jiratchaya
The concept of utilizing a rubber compound sheet (RCS) made from natural materials as a substitute for polymer plastics was investigated. In this study, the functions of RCS as a geomembrane were investigated. Testing on thickness, mass per unit area, tensile strength, and interface shear strength behavior under various environmental conditions or various curing conditions, including air, tap water, and wastewater (acid water (pH 6) and base water (pH 9)) for 90- and 180-curing days, were conducted. It was found that the properties of the RCS geomembrane, such as thickness, mass per unit area, tensile strength, and interface shear strength, were not affected by various curing conditions. The results confirmed that the RCS geomembrane can function as a geomembrane.
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The thickness of the soft soil layer and canal-side road failure: A case study in Phra Nakhon Si Ayutthaya province, Thailand
(2023-12-10)
Chaiyaput, Salisa
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Suksawat, Taweephong
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Mase, Lindung Zalbuin
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Sugiyama, Motohiro
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Ayawanna, Jiratchaya
Canal-side roads frequently collapse due to an unexpectedly greater soft-clay thickness with a rapid drawdown situation. This causes annually increased repair and reconstruction costs. This paper aims to explore the effect of soft-clay thickness on the failure in the canal-side road in the case study of Phra Nakhon Si Ayutthaya rural road no. 1043 (AY. 1043). Before the actual construction, a field vane shear test was performed to determine the undrained shear strength and identify the thickness of the soft clay at the AY. 1043 area. After establishing the usability of AY. 1043, the resistivity survey method was used to evaluate the thickness of the soft clay layer at the failure zone. The screw driving sounding test was used to evaluate the undrained shear strength for the road structure with a medium-stiff clay layer at the failure zone for applying to the numerical model. This model was simulated to confirm the effect of soft-clay thickness on the failure of the canal-side road. The monitoring and testing results showed the tendency of rapid drawdown failure when the canal-side road was located on > 9 m thick of soft clay with a sensitivity > 4.5. The result indicates that the combination of resistivity survey and field vane shear test can be successfully used to inspect the soft-clay thickness and sensitivity before construction. The preliminary design for preventing failure or improving the stability of the canal-side road should be considered before construction under the critical thickness and sensitivity values of the soft clay.
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Analysis of ground response and potential seismic damage to sites surrounding Cimandiri Fault, West Java, Indonesia
(2023-12-01)
Mase, Lindung Zalbuin
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Somantri, Andri Krisnandi
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Chaiyaput, Salisa
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Febriansya, Aditia
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Syahbana, Arifan Jaya
Cimandiri Fault in West Java is one of the active faults in West Java, Indonesia. The activity of the fault could potentially result in damage to the surrounding areas. This paper presents a study of ground response analysis and the potential seismic damage to structures in sites surrounding the Cimandiri Fault. The site investigation data are collected. Furthermore, ground motion prediction is conducted. To estimate the potential damage, the potential seismic damage is performed. The spectral matching method determines artificial ground motion represented by the investigated sites. The seismic ground response analysis is conducted to observe ground motion parameters and soil response. The results show that the prediction of damage intensity level in the study area is about Scale VIII at maximum. The site amplification during seismic response is observed to vary from 1.4 to 2.7. The results also show that spectral acceleration design is still reliable in covering the effect of spectral acceleration amplification. However, the results also indicate that the trend of spectral acceleration shows that the amplification generally occurs at a medium-long period. It implies that the resonance effect may occur in medium-high-rise buildings.
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A Case Study of Soil Resistance Microzonation Based on Shear Wave Velocity
(2025-06-01)
Adrian, Mellanie Novita
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Mase, Lindung Zalbuin
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Hardiansyah, Hardiansyah
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Misliniyati, Rena
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Supriani, Fepy
This study, unique in its focus on the Kepahiang Regency, Bengkulu Province, aims to analyse soil characteristics and their potential impact on infrastructure stability using shear wave velocity (V<inf>s</inf>) data from 30 microtremor points spread across Kepahiang. The analysis produces a soil layer profile, shear wave velocity variations at various depths, Vs distribution maps, soil classifications, and ground amplification factors. The study reveals a significant risk of soil resilience effects in the area, primarily due to the dominance of class C soil, which consists of very dense soil and soft rock, and class D soil, which is rigid. The high amplification factor caused by the low average shear wave velocity to a depth of 30 m also affects soil resistance. This research contributes significantly to geotechnical risk mitigation efforts, safer spatial planning, and infrastructure development resistant to landslides in the Kepahiang Regency.
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Partial soil replacement in soil cement using bentonite and polyurethane foam
(2026-06-01)
Rattanapitak, Pornkanok
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Shelina, Aza
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Ayawanna, Jiratchaya
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Kingnoi, Namthip
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Mase, Lindung Zalbuin
This study evaluates the effects of partially replacing soft clay with Ca-bentonite or polyurethane foam in soil-cement mixtures to improve geotechnical performance in soft soils. Cement content was fixed at 20% by total mix weight (% wt), while soft clay was partially replaced with Ca-bentonite or polyurethane foam at 20% wt, 30% wt, and 40% wt. Density, weight, and compressive strength were evaluated at curing ages of 7 and 28 days. The optimal mixture, determined based on compressive strength, was subsequently selected for the permeability test and compared with natural soft clay and a conventional soil-cement mixture. Moreover, scanning electron microscopy was conducted to characterize particle morphology and pore structure, providing microstructural insight into the strength behaviour of mixtures incorporating both Ca-bentonite and polyurethane foam replacements. The results indicate a clear contrast between the two replacement materials. Ca-bentonite increases density and compressive strength through pozzolanic and filling effects. The optimal sample, consisting of 50% soft clay, 20% cement, and 30% Ca-bentonite (S5C2B3) by weight, achieves a 28-day compressive strength of 9.71 MPa with stiff and brittle behaviours. Weight increase is associated with Ca-bentonite swelling, which enhances impermeability. In contrast, polyurethane foam reduces density and strength, producing a lightweight, ductile material due to its porous structure and water loss. Ca-bentonite is suitable for high-strength or low-permeability applications, whereas polyurethane foam is appropriate for lightweight fill where reduced weight is required.
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Utilization of ladle furnace slag and fly ash as partially replacement of cement
(2025-03-01)
Thwe, Khin Sam
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Ayawanna, Jiratchaya
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Mase, Lindung Zalbuin
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Chaiyaput, Salisa
Ladle Furnace Slag (LFS) and fly ash (FA) are industrial waste products commonly deposited in landfills, while the cement industry is a major source of carbon dioxide (CO<inf>2</inf>) emissions. Previous research has explored using LFS and FA as cement replacement materials to help mitigate environmental impacts. Yet, no studies have explored combining LFS and FA as cement replacement materials. Therefore, this research highlights the study of the combination of LFS and FA mixes as a partial cement replacement. The mix design for cement replacement materials was developed by combining ordinary Portland cement (OPC), LFS, and FA in the following weight ratios: 10:10:80, 20:20:60, and 30:30:40. These mix designs were assessed in comparison to 100%OPC (% by weight), evaluating key properties (bulk density, specific gravity, normal consistency, setting time, compressive strength, flexural strength, and microstructural characteristics). According to the findings, incorporating LFS and FA, both pozzolanic materials effectively improved the strength of the material by promoting a pozzolanic reaction, particularly during the final stages of curing. Furthermore, it was found that a mixed design containing 20% OPC, 20% LFS, and 60% FA demonstrated suitable properties for cement replacement in various applications, with beneficial results in terms of setting time and strength development. From X-ray fluorescence (XRF) and scanning electron microscope (SEM analysis), C-S-H gel, as well as Ca(OH)<inf>2</inf> and Mg(OH)<inf>2</inf> chemical compounds, were formulated. The aforementioned replacement is being used to promote environmental sustainability through the efficient use of industrial byproducts.
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Feasibility assessment of porous granules from lateritic soil and sawdust as partial cement replacement under seawater immersion
(2026-06-01)
Chaiyaput, Salisa
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Sertsoongnern, Pimchanok
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Nguyen, Trong Nghia
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Mase, Lindung Zalbuin
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Ayawanna, Jiratchaya
This study developed porous granules from lateritic soil and sawdust as an innovative approach to valorizing waste for use as a partial cement replacement. The study focused on two aspects: first, identifying suitable composition ratios and chemical agents for producing porous granules, and second, evaluating the feasibility of using granules in a cement-granule paste or as a partial cement replacement to achieve sufficient strength under seawater immersion. The findings showed that the optimal granule composition consisted of 70 wt% lateritic soil, 30 wt% sawdust, and 0.50 wt% sodium silicate, producing granules with a maximum porosity of 34% and a pore structure characterized by isolated (closed) internal pores, as indicated by qualitative observations of 3D tomographic images. When incorporated into cement paste at 20 wt% replacement with a size range of 1–2.36 mm, compressive strengths of 31–36 MPa were achieved after 7 days, meeting the standard requirements. The relationship between pore volume, granule size, and compressive strength was non-linear. Under seawater curing, samples with a 20 wt% replacement maintained strength comparable to plastic-wrapped samples, indicating stable mechanical performance during seawater immersion. These results present the feasibility of using lateritic soil-sawdust porous granules as a partial cement replacement under seawater immersion, using a simplified laboratory assessment rather than direct simulation of real marine environments. However, transport-related durability properties, such as permeability, water absorption, and ion ingress (e.g., chloride, sulfate, and magnesium ions), were not evaluated. Therefore, durability-related interpretations remain preliminary and require further validation.
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Sustainable pavement recycling: Utilization of cement and asphalt waste dust to improve CBR and permeability
(2025-09-01)
Chaiyaput, Salisa
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Thatmas, Natthapong
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Nguyen, Trong Nghia
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Huan, Vo Nguyen Phu
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Mase, Lindung Zalbuin
This study aims to utilize asphalt waste dust, a pollutant by-product of the asphalt production process, to improve the quality of recycled pavement materials for use as base course materials, under the standards of the Department of Rural Roads and the Department of Highways, Thailand. The mixture consisted of 70 % by weight (wt%) reclaimed asphalt pavement (RAP), 30 wt% crushed rock (CR), 3.5 wt% cement (C), and 20 wt% asphalt waste dust (AD), in comparison to the general pavement recycling (RAP-CR-C). Compaction test, permeability test, California Bearing Ratio (CBR) test, and scanning electron microscope (SEM) analysis were performed under all testing conditions. The highest performance was achieved for the recycled pavement materials, containing 3.5 wt% cement and 20 wt% asphalt waste dust (RAP-CR-C-AD20). The coefficient of permeability was 2.32 × 10-7 cm/s under pressurized constant head, 2.40 × 10-7 cm/s under an 8 mm falling head, and 2.59 × 10-7 cm/s under a 14 mm falling head. The CBR values were 493 % at 0.1 in (2.54 mm) penetration and 491 % at 0.2 in (5.08 mm) penetration. The RAP-CR-C-AD20 exhibited a low coefficient of permeability but a high CBR, compared to those of RAP-CR-C, and above the minimum base course requirement (CBR > 80 %). This study highlights the potential of using asphalt waste dust in pavement recycling as an innovative solution that not only reduces waste but also contributes to sustainable road construction practices.

Chaiyaput, Salisa

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