Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing

1999 ◽  
Author(s):  
Keyword(s):  
Construction Materials ◽  
Materials Testing

Uji Marshall Pada Campuran AC-WC Dengan Substitusi Filler

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Zainal Abidin ◽  
Bunyamin Bunyamin ◽  
Febrina Dian Kurniasarir
Keyword(s):  
Construction Materials ◽  
Oyster Shell ◽  
Materials Testing ◽  
Filler Materials ◽  
Type Ii ◽  
Asphaltic Concrete ◽  
Asphalt Content ◽  
Materials Used ◽  
The Stability

To improve the quality of pavement can be achieved by substituting filler materials. The materials used for mixing asphaltic concrete are Portland Cement (PC) Andalas type II and Krueng Neng Oyster Shell (ACT) to bind the aggregate with the mixture of asphalt becoming denser as the ACT contains silica and lime. The use of ACT as a filler is expected to improve the quality of the pavement mixture. The study aimed to determine the effect of Marshall Parameters on the use of PC-substituted ACT fillers with a composition of 0% ACT: 100% PC, 20% ACT: 80% PC, 50% ACT: 50% PC, 80% ACT: 20% PC , and 100% ACT: 0% PC against AC - WC mixture. The number of construction materials testing in this study was 66. The research method was Bina Marga 2010 Revision 4 of 2018. The results showed that all compositions met the requirements for the Bina Marga 2010 Revision 4 2018 specification, the best composition for ACT and PC filling substitutes were obtained a percentage of 20% ACT and 80% PC at 5.00% of the asphalt content, the stability value was 1323.01 kg with a VIM value of 3.66% VMA 15.91% VFA 76.99 and MQ 508.68 kg / mm.

scholarly journals A New Method of Testing the Dynamic Deformation of Metals

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3317
Author(s):  
Jacek Pawlicki ◽  
Zbigniew Stanik ◽  
Adam Płachta ◽  
Andrzej Kubik
Keyword(s):  
Dynamic Deformation ◽  
Construction Materials ◽  
Measuring System ◽  
Materials Testing ◽  
Test Results ◽  
The Finite Element Method ◽  
Short Term ◽  
Bending Tests ◽  
Dynamic Materials ◽  
Energy Consuming

This paper presents the characteristics of a modernized rotary hammer equipped with a new measuring system based on strain gauges for recording short-term signals. The stand makes it possible to carry out dynamic tensile and bending tests in the range of linear speed of the exciting element from 5 to 40 m/s. Initial tests of dynamic deformation and structural studies in the form of fractures carried out on a representative group of metallic materials allowed determining the correlation “strain rate–strain structure”. The proposed new methodology of dynamic materials testing is an original achievement of the authors and may be an effective tool for assessing the properties of construction materials under conditions of dynamic deformation. In practice, the test results can be used to design the structures of energy-consuming elements of vehicles and aircraft load-bearing elements subjected to dynamic loads. Having an extensive database of results from dynamic tests will allow verifying the correctness of calculations of the structure with the use of the finite element method.

scholarly journals NVLAP Construction Materials Testing

2020 ◽  
Author(s):  
Thomas Hettenhouser ◽  
Timothy Rasinski
Keyword(s):  
Construction Materials ◽  
Materials Testing

scholarly journals Development of methods to measure the potential of a plaster to regulate indoor humidity

2021 ◽  
pp. 014362442110254
Author(s):  
Kiyomi D Lim ◽  
Daniel Maskell
Keyword(s):  
Building Materials ◽  
Construction Materials ◽  
Test Method ◽  
Materials Testing ◽  
Indoor Climate ◽  
Testing Procedures ◽  
Internal Surfaces ◽  
Design Integration ◽  
Moisture Buffering ◽  
Indoor Humidity

Moisture buffering utilises hygroscopic construction materials as a more sustainable approach to passively moderate indoor humidity. This study seeks to develop a reproducible test method to obtain a moisture buffering value of common building materials under conditions that reflect typical indoor environmental conditions. Temperature and humidity variations in sinusoidal profiles for two different materials, typically used to finish internal surfaces, have been studied to identify their potential moisture regulation behaviour. Outcomes were then combined and ranked indicating the potential of materials to passively regulate the indoor humidity and the need for robust methods of investigation. Practical application: In response to current practice and materials’ testing procedures, a reproducible test method is considered to enable comprehensive understanding of a hydroscopic materials’ behaviour, where subsequent interpretation of their performance can be quantified. The practicality to consider the use of passive regulation using hygroscopic materials can then be justified to bring indoor RH closer to the optimal range without heavy reliance on mechanical solutions, achieving a more effective passive indoor climate monitoring. It is expected that the outcome of this investigation can potentially form the basis of further improvement on a standardised test method to obtain moisture buffering value of hygroscopic non-structural elements for pragmatic application during design integration process.

Absorption, Transmission, Reflection

2020 ◽  
pp. 243-270
Author(s):  
Roland Wittje
Keyword(s):  
Standardized Testing ◽  
Construction Materials ◽  
Global Scale ◽  
Acoustic Properties ◽  
Materials Testing ◽  
Measurement Systems ◽  
Media Technologies ◽  
Scientific Principles ◽  
Musical Listening

This chapter discusses the genealogy of construction materials testing at acoustic laboratories founded in the late 1920s and 1930s, through the example of Norges Tekniske Høgskole (NTH) in Trondheim, Norway. Whereas architectural acoustics entailed mainly fieldwork, in the form of on-site research and consulting, the standardized testing of materials required idealized laboratory conditions where acoustic behavior could be isolated and reduced to the parameters of absorption, transmission, and reflection. With the rise of the acoustic laboratory, “objective” measurement systems replaced musical listening as a crucial skill for acousticians. Electroacoustic media technologies quickly spread on a global scale, yet acoustic laboratories still catered to the needs of local markets. One of these requirements was resource optimization, and the objective of standardized testing generally was less to improve the quality of construction than to optimize its cost. Traditional materials and buildings often exhibited better acoustic properties than the new constructions based on scientific principles.

Sign in / Sign up

Export Citation Format

Share Document