GPH-International Journal of Mechanical And Civil Engineering

The Role of Trust in Civil Construction Negotiations: A Brazilian Case Study

Murillo Dias, Carlos André Campos Panzarini — Wed, 19 Nov 2025 11:17:28 +0000

This article investigates an intricate real estate negotiation occurred in Sorocaba, São Paulo. The R$360 million transaction encountered a major obstacle because a real estate intermediary led to the breakdown of trust. The negotiating team faces increasing difficulties because they need to handle various relationships and power systems to protect the agreement. The negotiating team needs to show their ability to rebuild trust during agreement completion but their ongoing disputes threaten to surpass their problem-solving capacity. The case study presents an interesting story about negotiation and conflict resolution and relationship development which offers vital data for academic researchers and professional practitioners.

Intersections of Experience, Consumption, and Value: A Literature Review on Luxury Markets

Lucas Chacur, Murillo Dias — Sat, 06 Dec 2025 10:12:54 +0000

The research article conducts a literature review to study three related fields which include customer experience and luxury consumption and luxury value perception and creation. The marketing field has only recently started studying customer experience but luxury consumption research spans multiple centuries with established theories about exclusive experiences and personal identity and social status comparison. The perception of luxury value includes multiple aspects of worth which include practical and monetary value and symbolic and emotional worthwhile customers now play active roles in creating value through social connections. The different market perspectives about experiences and value show both commonalities and conflicting viewpoints. The current body of research about this subject lacks thorough investigation of a specific sector. The absence of particular research in this field generates critical questions which need urgent answers. The combination of these theories produces specific outcomes when they encounter situations which maximize scarcity and prestige and experiential value.

A COMPARATIVE STUDY OF THE USE OF VARIOUS TYPES OF CEMENT AS A FILLER ON THE STABILITY CHARACTERISTICS OF MARSHALL ASPHALT CONCRETE – WEARING COURSE (AC-WC) MIXTURES

Wed, 31 Dec 2025 00:00:00 +0000

In road construction, pavement stability is a crucial aspect in ensuring the durability and performance of the road against traffic loads. To improve the quality of the pavement, filler materials are substituted. Portland cement (PC) is used in the asphalt concrete mixture. The objective of this research was to analyze the effect of different types of Portland cement used as filler on the Marshall stability and other parameters of the Asphalt Concrete–Wearing Course (AC-WC) mixture. This research used a laboratory experiment method conducted at the Soil Mechanics, Materials, and Soil Measurement Laboratory, Faculty of Engineering, Universitas 17 Agustus 1945 Samarinda. This research used Holcim, Tonasa, and Conch cement types with a proportion of 2% of the total aggregate weight as an additive, and asphalt content varied between 5%, 5.5%, 6%, and 6.5%. Tests were carried out using the Marshall method to measure stability, flow, VIM, VMA, VFA, and Marshall Quotient parameters. The research results show that the addition of Portland cement as a filler in an Asphalt Concrete–Wearing Course (AC-WC) mixture significantly improves the mechanical strength and durability of the pavement, as demonstrated by higher Marshall stability values. Tonasa cement produced the highest Marshall stability and stiffness, indicating that its finer particle size and more homogeneous composition provide a stronger bond between the asphalt and aggregate.