JOURNAL OF TESTING AND EVALUATION

Xiaohong Chen, Pei Ge, Maoguo Li, Yuhang Yan et al.

ABSTRACT Recycled powder recycling is a popular global research hotspot, with its optimal replacement ratio being a key research focus. Traditional studies limit the recycled powder content in cement to below 30 % to guarantee stable cement performance. Recycled cement was defined as the composite material prepared by mixing hardened cement powder (HCP) with ordinary cement as …

K. H. Mamatha, B. N. Vinod Raj, Mohan Badiger, S. V. Dinesh

ABSTRACT The current study explores the effectiveness of recycled tires as a pavement reinforcement material and compares their performance with conventional commercial geocell (CGC) reinforcement. Recycled tire cellular grid (RTCG) and recycled tire cell (RTC) are prepared using waste tires for use as reinforcing materials. Laboratory prototype pavements are constructed and te…

Qinghe Wang, Jinyu Wang, Ying Liu

ABSTRACT As the dimensions of concrete components continue to grow, it becomes critical to assess the validity of existing models for predicting concrete drying shrinkage. Utilizing theoretical thickness as a key parameter, a 360-d drying shrinkage test was conducted on four groups of specimens. The objective was to quantify the impact of the size effect on ultimate drying shri…

Erdem Coleri, Sean P. Gibson, Servan Baran, Mayank Sukhija

ABSTRACT This research study aimed to assess the impact of pavement smoothness across the roadway network in Oregon and analyze various scenarios to identify opportunities for reducing financial expenditures and emissions via reductions in overall roadway roughness levels. An analysis of 20 years of Oregon Department of Transportation (ODOT)’s International Roughness Index (IRI…

Vignesh Krishnan, Luke Hacquebard

ABSTRACT Elastomers are widely used in components that are subject to compressive loading, such as bearings, mountings, O-rings, and other sealing or cushioning applications. Although standard test methods for characterizing compressive properties (such as ASTM D575-91 [2024], Standard Test Methods for Rubber Properties in Compression) allow for the comparative analysis of diff…

Yongming Lai, Satoru Kawasaki, Xu Chen, Qian Liu

ABSTRACT Microbially induced carbonate precipitation using Sporosarcina pasteurii is an effective technique for soil improvement. However, heavy metal contaminants in mine tailings inhibit microbial growth and metabolic activity, reducing treatment efficiency and increasing costs. To address this challenge, this study developed a combined biological approach for tailings sand s…

T. Akhil, Gourab Saha

ABSTRACT The objective of this study was to evaluate the moisture loss (ML) behavior of cold mix asphalt (CMA) and establish its relationship with strength and volumetric with various types of fillers. This experimental program included four types of CMA mixes with different types and compositions of fillers at curing at two temperatures, 25°C and 38°C, and three durations: 1, …

Yaodong Zhang, Yanan Cui, Dezhi Ji

ABSTRACT The usage of reclaimed asphalt pavement (RAP) in pavement presents a sustainable solution for pollution caused by landfilled construction waste but raises concerns regarding the fracture resistance of RAP-incorporated asphalt pavement. This study evaluates the effects of coarse RAP content (particle size ranges from 10 to 16 mm), thermal oxygen aging, and environmental…

Eric McDermott, Shiril Sivan, Matthew Di Prima

ABSTRACT The increasing adoption of additive manufacturing (AM) for medical device production has resulted in additively manufactured medical devices being used in a range of applications and anatomical locations. Although medical device mechanical performance is often the primary concern, the influence of the AM process on the corrosion resistance of these products has become …

Hyeonsu Yun, Seong-Kyu Yun, Byungkwan Kim, Ji-Gun Chang et al.

ABSTRACT Rapid urbanization has ledto increased construction of underground structures, requiring accurate evaluation of groundwater flow characteristics. The permeability coefficient is a key parameter governing groundwater flow. However, its accurate determination through laboratory testing is limited because of soil disturbance. Consequently, field permeability test results …

Chenye Duan, Chao Zhang, Ming Cheng, Ruoyu Bao et al.

ABSTRACT This study presents a comprehensive evaluation and optimization methodology for a novel magneticv tracer sealant, integrating physical experiments and response surface methodology (RSM) to assess its rheological properties and particle suspension behavior. The experimental findings indicate that the water-cement ratio exerts the most substantial influence on the rheolo…

Qingsong Zhang, Zhibin Liu, Yuting Wang, Yongfeng Deng et al.

ABSTRACT Mudstone, a frequently utilized material for embankment filling, tends to soften and disintegrate upon exposure to water. To address this, mudstone was modified through heating at elevated temperatures ranging from 140°C to 340°C. The hydrophobic characteristics of the mudstone samples were assessed using contact angle and water drop penetration time tests conducted at…

Oumar Orozi Sougui, Mohd Rosli Mohd Hasan, Zhen Wu, Ali Jamshidi et al.

ABSTRACT The viability of lime kiln dust (LKD) as a substitute filler in asphalt paving materials has been assessed to determine its suitability for road surfacing applications. This study compares the chemical composition, environmental impact, and leaching behavior to conventional fillers like ordinary portland cement (OPC) and hydrated lime (HL). Using attenuated total refle…

Weidong Cao, Chuanyi Ma, Jizhe Zhang, Wenhua Wang et al.

ABSTRACT To achieve a synergistic effect of various fibers in hot-mix asphalt, an optimization method for determining the optimal composition ratio of hybrid fiber (HF), containing lignin, polyester, and basalt fibers (BFs) was presented according to the simplex centroid design method and the rheological properties of HF-reinforced asphalt mortar. Additionally, the pavement per…

Shuyi Qiu, Zhengwu Long, Yu Miao, Mohd Rosli Mohd Hasan et al.

ABSTRACT Alkali-activated slag (AAS) systems offer a sustainable approach for valorizing industrial solid wastes, thereby lessening the environmental impact of both cement production and landfilling. Although granite (GN) and dolomite (DM) wastes are abundant by-products, their use in AAS materials for performance enhancement has not been systematically investigated. This study…

Shuddhashil Ghosh, Priyansh Singh

ABSTRACT Specimen geometry and compaction methodology vary considerably across pervious concrete studies, yet their independent contributions to measured porosity and compressive strength are not well established. This study systematically investigates how mould aspect ratio (AR), surface-area-to-volume (SAV) ratio, and compaction layer height jointly influence these properties…

Lifeng Fan, Siqi Chen, Bei Qiu

ABSTRACT This paper investigates the thermal healing effect of mild temperatures (100–350°C) on the pores of granite. First, a sequence of thermal treatments was conducted on granite at various temperatures: 100°C, 150°C, 200°C, 250°C, 300°C, 350°C, 400°C, and 600°C. Subsequently, nuclear magnetic resonance (NMR) tests were conducted to assess the thermally induced changes in t…

Mohan Badiger, K. H. Mamatha, S. V. Dinesh

ABSTRACT Strength of the subgrade plays a vital role in the design and construction of pavements. Traditional subgrade strength evaluation techniques consume more time and are labor-intensive. This study uses dynamic cone penetrometer index (DCPI) and other soil properties to predict the strength of subgrade soils including unconfined compressive strength (UCS) and California b…

Yue Yu

ABSTRACT To improve the defuzzification effect of images and the clarity of 3D reconstruction, a multiviewpoint image defuzzification and 3D reconstruction algorithm based on virtual reality (VR) is proposed. After constructing an end-to-end defuzzification network model, in a VR environment, the Visual C++ visualization software development platform and VTK 3D image processing…

Nongping Mao, Kai Meng, Kai Cheng, Kai Wan et al.

ABSTRACT To overcome the technical difficulties in evaluating the compaction homogeneity of epoxy asphalt (EA) pavement systems on orthotropic steel bridges, the PQI-380 served as a nondestructive tool for detecting density across the full cross-section of both the lower and upper EA pavement layers. By converting the density data into air void content, a complete cross-section…