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Experimental study analyzing the effects of partial cement replacement with silica fume and waste glass powder on fresh, hardened, and durability properties of concrete, highlighting optimal mix proportions and microstructural enhancements.
Year:
2026
Authors:
Ömer Damdelen, Mohamad Ali Mosaberpanah, Stephen Babajide Olabimtan, Micheal Deric Anthony, Babatunde Olufunso Oluwole
Affiliation:
Civil Engineering Department, Cyprus International University, North Cyprus, Nicosia, Turkey
Type of document:
Research article
Field:
Civil Engineering / Sustainable Construction
Keywords:
Silica fume, Waste Glass Powder, Sustainable Concrete, Cement Replacement, Material Science
Correspondence email:
[email protected]
Study focus:
Impact of silica fume and waste glass powder on concrete properties
Experimental variables:
Cement replacement levels (5%-20%) with silica fume and waste glass powder
Measured properties:
Workability, compressive strength, tensile strength, water absorption, density, microstructure, high-temperature resistance
Publication language:
English
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Year:
Not specified
Region / City:
Not specified
Subject:
Workplace safety, roof work, fume cupboard emissions
Document Type:
Safety guidelines
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Maintenance and service personnel
Period of Validity:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Organisation:
South African Nuclear Energy Corporation SOC Ltd (Necsa)
Bid number:
FIN-SCM-TEN-0205
Bid description:
Supply, installation, commissioning and validation of three identical fume cupboards
Document type:
Invitation to bid / tender document
Sector:
Nuclear energy and laboratory infrastructure
Procurement framework:
Preferential Procurement Policy Framework Act and Preferential Procurement Regulations, 2022
Contract conditions:
General Conditions of Contract (GCC) and applicable special conditions
Bid closing date:
18 March 2026
Bid closing time:
11:00 AM
Bid validity period:
90 working days from the bid closing date
Delivery address:
Necsa Gate 3, R104 Elias Motsoaledi Street (Church Street West Ext), Pelindaba, Brits Magisterial District, Madibeng Municipality, North West, 0240, South Africa
Contact person:
Mr. Buyani Nsibande
Contact email:
[email protected]
Contact telephone:
+27 (0) 12 305 6072
Project components:
Supply and installation of fume cupboards, validation, site acceptance testing, safety documentation, operator training, spare parts provision
Associated project:
UCHEM Crystal Waste Project
Technical specification reference:
MES – MEC-PUR - 0008
Health, safety and environmental requirements:
Compliance with ISO 14001, OHSAS 18001, ISO 9001, ISO 17025 and RD 0034
Site status:
National Key Point facility with controlled access requirements
Year:
2026
Region / City:
Pelindaba, South Africa
Document Type:
Invitation to Bid / Tender Document
Organization:
Necsa
Bid Number:
FIN-SCM-TEN-0205
Closing Date:
18 February 2026
Closing Time:
11:00am
Contact Person:
Mr Buyani Nsibande
Telephone:
012 305 6072
Email:
[email protected]
Scope:
Supply, install, commission and validate three identical fume cupboards
Requirements:
Tax Compliance Status PIN, Central Supplier Database registration, B-BBEE verification
Target Audience:
Suppliers of laboratory equipment, foreign and local bidders
Conditions:
Comply with Preferential Procurement Policy Framework Act 2000, General Conditions of Contract, and Special Conditions if applicable
Submission:
Bids must be submitted on official forms by the closing date and time
Year:
2012
Document type:
Technical assessment
Topic:
Occupational health, Aluminum welding fume
Author:
James L. Unmack, MS, CIH
Organization:
HEAC
Draft versions:
1 March 9, 2012; 2 March 12, 2012; 3 March 16, 2012; 4 March 26, 2012
Chemical:
Aluminum oxide
CAS number:
1344-28-1
Proposed exposure limit:
0.5 mg/m³ TWA
Measurement methods:
NIOSH 7300, 7301, 7303, Method 7013
Intended audience:
Occupational health professionals, industrial hygienists
Key applications:
Aerospace, transportation, non-ferrous metal welding
Relevant studies:
Piggot 1981, Akila 1999, Buchta 2003, Elinder 1991, Hanninen 1994, Iregren 2001, Ljungren 1991, Riihimaki 2000/2008, Rossbach 2006, Vandenplas 1998, Sjogren and Ellinder 1992
Exposure guidelines referenced:
8 CCR 5155 Table AC-1, NIOSH REL, ACGIH TLV
Content focus:
Particle size, density, melting/boiling points, odor thresholds, health-based recommendations
Year:
2015
Region / City:
Minneapolis, Minnesota, USA
Subject:
Laboratory and industrial ventilation
Document Type:
Product specification / technical guide
Organization / Institution:
Twin City Fan & Blower, division of Twin City Fan Companies, Ltd.
Author:
Twin City Fan & Blower Technical Department
Target Audience:
Engineers, contractors, facility managers
Standards Referenced:
AMCA, ANSI, NEMA, NFPA, UL/cUL
Fan Model:
TVIFE Series Induced Flow Mixed Flow Fans
Drive Configuration:
Direct drive, Arrangement 4
Applications:
Laboratory fume hoods, schools, hospitals, research facilities, restaurants, wastewater treatment plants
Sizes:
Wheel diameters 12.25 to 66 inches (315 mm to 1,680 mm)
Airflow Capacity:
Up to 86,000 CFM (146,400 m³/hour)
Static Pressure:
Up to 8 inches wg (1,987 Pa)
Certifications:
AMCA certified air and sound performance, UL/cUL 705 listed
Manufacturing Facilities:
Ten U.S. locations and expanded operations in South America, Europe, India, China, Singapore
Quality Standard:
ISO 9001
Year:
2024
Region / city:
California
Topic:
Occupational health, workplace safety
Document type:
Regulatory model plan
Agency/organization:
Cal/OSHA
Author:
State of California, Department of Industrial Relations
Target audience:
Employers in general industry
Effective period:
From December 29, 2023
Approval date:
Not specified
Modification date:
Not specified
Note:
Year
Topic:
Respirable Crystalline Silica Program, Occupational Safety
Document Type:
Safety Program
Organization / Institution:
Penn State University
Author:
Penn State Environmental Health and Safety (EHS)
Target Audience:
Penn State employees, faculty, students, researchers, and affiliates
Effective Period:
Ongoing
Year:
2019
Region / City:
California
Topic:
Silica Exposure Control in Construction
Document Type:
Template
Organization / Institution:
California Occupational Safety and Health Administration (Cal OSHA)
Author:
Cal OSHA
Target Audience:
Employers in the construction industry
Effective Period:
Ongoing
Approval Date:
December 2019
Amendment Date:
Not specified
Document type:
Bid notice and invitation to bid
Bid number:
2023-25-04
Procuring entity:
City of Mansfield, Texas
Issuing authority:
City Council of Mansfield
Subject:
Purchase, delivery, installation, and disposal of granular activated carbon filter media and silica sand
Facility:
Bud Ervin Water Treatment Plant
Location:
Mansfield, Texas
Bid submission deadline:
December 19, 2023, 2:00 P.M.
Bid opening method:
Public opening and reading aloud
Contract duration:
Single award for specified delivery and services
Award criteria:
Best value based on price, delivery schedule, quality, reputation, compliance, past relationship, legal compliance, and long-term cost
Bid submission method:
Sealed bids only
Exclusions:
Emailed and faxed bids not accepted
Advertisement publication:
Fort Worth Star-Telegram
Advertisement dates:
December 3, 2023; December 10, 2023
Year:
2018
Note:
Region / City
Topic:
Silica Exposure Control, Stone Industry
Document Type:
Template, Safety Plan
Organization / Institution:
Natural Stone Institute
Target Audience:
Stone cutting and fabrication companies
Year:
2020
Jurisdiction:
Victoria, Australia
Document type:
Regulatory Impact Statement
Subject:
Occupational health and safety regulation
Focus:
Respirable crystalline silica exposure
Industry sectors:
Construction, manufacturing, stonemasonry, earth resources
Regulatory framework:
Occupational Health and Safety Act 2004
Proposed regulation:
Occupational Health and Safety Regulations 2017 amendments
Issuing body:
WorkSafe Victoria
Contributing authority:
Better Regulation Victoria
Consultation:
Stakeholder consultation undertaken
Health risks addressed:
Silicosis and silica-related diseases
Affected materials:
Engineered stone, stone, concrete, bricks, tiles
Relevant period:
2019–2021
Proposed commencement:
2021
Year:
2019
Region / City:
California
Topic:
Silica Exposure Control
Document Type:
Template
Institution:
Cal/OSHA
Target Audience:
Employers, Occupational Safety Managers
Period of Validity:
Ongoing
Approval Date:
December 2019
Date of Last Review:
[Type the date of last review]
Date of Changes:
N/A
Year:
2026
Region / City:
Upstream oil and gas industry
Topic:
Silica exposure management
Document Type:
Template
Organization:
Enform
Author:
Not specified
Target Audience:
Industry professionals (oil and gas workers, supervisors, contractors)
Effective Period:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Note:
Year
Document Type:
Template
Year:
2016
Region / City:
Pasadena, California / Glasgow, UK
Topic:
Fibre breaks in suspension systems
Document Type:
Internal working note
Institution:
LIGO Laboratory, California Institute of Technology, University of Glasgow
Authors:
A. S. Bell, G. Hammond, J. Hough, K. Strain, N. Robertson, S. Rowan
Target Audience:
LIGO Scientific Collaboration
Date of Approval:
11th January 2016
Date of Changes:
Not specified
Period of Action:
2011–2013
Year:
2026
Region / City:
United States
Topic:
Occupational Health and Safety
Document Type:
Safety Program
Organization / Agency:
Occupational Safety and Health Administration (OSHA)
Target Audience:
Construction employees, project managers, safety personnel
Applicable Standard:
OSHA Respirable Crystalline Silica Construction Standard 29 CFR 1926.1153
Scope:
All construction work with potential exposure to respirable crystalline silica
Responsibilities:
Safety Department, Project Manager, Competent Person, Employees
Control Measures:
Exposure Control Plan (ECP), monitoring, PPE, training, medical surveillance
Note:
Year
Year:
2023
Region / City:
Not specified
Topic:
Immunology, Cytotoxicity, Flow Cytometry
Document Type:
Research Supplementary Figures
Author:
Not specified
Target Audience:
Researchers, Immunologists
Period of Validity:
Not specified
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2023
Region / city:
Cincinnati, OH, USA
Topic:
Airborne dust, crystalline silica, laboratory testing, sampling efficiency
Document type:
Research article
Institution:
Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH)
Author:
Drew Thompson, Chaolong Qi
Target audience:
Researchers, occupational health professionals
Date of approval:
N/A
Date of modifications:
N/A
Year:
2025
Region / city:
Waterford, N.Y.; Havre de Grace, Md.
Industry:
Specialty chemicals
Document type:
Press release
Organization:
Evonik Industries AG
Author:
Not specified
Target audience:
Industry professionals, stakeholders in chemical production
Action period:
2025-2026
Approval date:
January 17, 2025
Date of changes:
Not specified
Contextual description:
Press release announcing the closure of two silica production plants in North America as part of a strategic optimization to enhance operational efficiency.