Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation

Liu, Xin; Ni, Chengwei; Zhang, Liye; Sheng, Ke; Hong, Baoning

doi:10.1155/2019/4915870

Cited by 10 publications

(8 citation statements)

References 22 publications

(22 reference statements)

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“…Alac et al proposed a multicriteria decision-making model to evaluate the essential physical and mechanical properties of materials [6]. Liu et al studied the durability of lightweight honeycomb concrete and established a durability evaluation method combined with the analytic hierarchy process and fuzzy comprehensive evaluation method [7]. Ozsahin et al used a mixed analytic hierarchy process and multiobjective optimization method based on ratio analysis to select the most suitable building wood after assessing the economic, physical, mechanical, and thermal properties and durability of wood [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Interval Evidential Reasoning Approach to the Physical and Mechanical Property Assessment of Particleboards

Yang

Sun

Su³

et al. 2021

Mathematical Problems in Engineering

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In this paper, a new assessment method based on the interval evidential reasoning (IER) rule is proposed to solve the problem of physical and mechanical property assessment (PMPA) for particleboards. Because the detection data of the density and thickness swelling (TS) of particleboards are in an interval form, a model with precise values as input becomes inappropriate, so the PMPA of particleboards is not feasible. In the proposed method, expert knowledge and interval data are integrated to solve the assessment problem. First, the overall reliability of attributes is calculated, and the interval data are transformed into an interval belief structure. Then, the multiple interval belief structures are aggregated by ER nonlinear optimization models. Finally, the assessment results are obtained by utility theory. With the proposed method, the PMPA of particleboards with interval values can be assessed reasonably, and the combination interval belief degree of different grades of particleboard can be obtained, which has a certain guiding significance for the production and subsequent operation of enterprises. A case study for the PMPA of particleboards is conducted to demonstrate the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

A Novel Interval Evidential Reasoning Approach to the Physical and Mechanical Property Assessment of Particleboards

Yang

Sun

Su³

et al. 2021

Mathematical Problems in Engineering

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“…Furthermore, we demonstrate a multicriteria decision making method, coupling fuzzy comprehensive evaluation (FCE) with analytic hierarchy process (AHP), to assess the adaptability of five selected overlays in the three use cases. FCE is a multifactor decisionmaking method (Liu et al, 2019, Yu et al, 2020 that has been applied in many fields, because this method can be employed to quantify the fuzzy factors by calculating their "final scores" and then determine the best option.…”

Section: Introductionmentioning

confidence: 99%

“…When FCE is applied, AHP is usually followed to quantify the decision weight of selected factors to enable more scientific and reliable assessment (Liu et al, 2019). The decision based on the combined use of FCE and AHP is better than that based on AHP alone, because the decision weights in the latter case are more objective and may result in an unreasonable decision if lacking the relevant experience and knowledge.…”

Section: Introductionmentioning

confidence: 99%

Optimal Overlays for Preservation of Concrete Slabs in Cold Climate: Decision Making by the Method of Fuzzy Comprehensive Evaluation Combined with AHP

Dang

Tang

et al. 2021

Preprint

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Overlays have been extensively employed as an effective preservation or rehabilitation tool to extend the service life of concrete bridges and pavements, especially these deteriorated concrete slabs suffering from salt scaling and abrasion. However, limited attention has been paid to the durability and performance of these overlays which can be jeopardized when they are exposed to freeze/thaw-wet/dry cycles, deicer applications, studded tires, and their coupled effects as well. Various overlays feature different engineering properties, and they might be only effective in specific service environments but not others, and research is lacking to examine the adaptation of various overlays in different environments. This study subjected five overlay products on concrete slabs to the combined action of freeze/thaw (F/T) and wet/dry (W/D) cycles with periodical exposure to either 15 wt.% NaCl solution or 15 wt.% MgCl2 solutions, to simulate the typical field scenarios in an accelerated manner. The bond strength, splitting tensile strength, and abrasion resistance of the overlaid concrete slabs were tested to evaluate the effectiveness of various overlays against the deicer scaling and the abrasion by studded tires. Based on the experimental data, this study demonstrated a multi-criteria decision making method, fuzzy comprehensive evaluation (FCE) combined with analytic hierarchy process (AHP), for the selection of optimal overlays in three different service scenarios (e.g., states of Washington and Oregon [USA] and British Columbia [Canada]). The analysis results indicated that one epoxy overlay exhibited the comprehensively best performance and could be a promising candidate in all three given scenarios, another polymer overlay took second place, while the adaptability of the three cement-based overlays varied in different environments.

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“…Most of the study focuses on compressive strength, stress-strain characteristics, and fiber improvement [9][10][11]. And Liu et al [12] analyzed the durability using the method of analytic hierarchy process combined with a fuzzy comprehensive evaluation. Of course, new improved materials added for LCC remain to be found to accelerate the development of construction technology and ensure quality.…”

Section: Introductionmentioning

confidence: 99%

Construction Techniques and Quality Test and Evaluation of Lightweight Cellular Concrete Mixed with Fly Ash as Subgrade Material

Liu

et al. 2019

Advances in Materials Science and Engineering

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To improve the comprehension and utilization of lightweight cellular concrete mixed with fly ash (LCCF) and ensure project quality in subgrade construction engineering, the construction techniques and quality control measures of LCCF are studied in this paper. The corresponding research contents, based on a specific project case located in Guangdong Province, are as follows. Firstly, the construction technology process and technological measures are put forward, according to the site construction conditions and quality requirements. Secondly, the feasibility of indoor mixture ratio is further verified by measuring the fluidity, wet density, and strength on-site. Thirdly, the suitable pouring thickness of the single layer and reasonable interval time between layers are determined by the vertical delamination test and surface strength test. In this paper, the indoor mixture ratio of LCCF has been improved through tests such as single factor test and multifactor orthogonal test considering factors like fly ash, water-binder ratio, and foam. Some highlights of this article are as follows: the preparation methods of lightweight concrete in laboratory and in situ are given. And two patented test devices are used for the strength test along with the depth and surface strength test, respectively. Besides, the practical engineering case is Lianjing Bridge, of which mileage pile number is K80 + 679.679∼K80 + 760.113, which is part of a highway in Zhaoqing City, Guangdong Province, China.

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Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation

Cited by 10 publications

References 22 publications

A Novel Interval Evidential Reasoning Approach to the Physical and Mechanical Property Assessment of Particleboards

A Novel Interval Evidential Reasoning Approach to the Physical and Mechanical Property Assessment of Particleboards

Optimal Overlays for Preservation of Concrete Slabs in Cold Climate: Decision Making by the Method of Fuzzy Comprehensive Evaluation Combined with AHP

Construction Techniques and Quality Test and Evaluation of Lightweight Cellular Concrete Mixed with Fly Ash as Subgrade Material

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