Your search resulted in 9 documents.
Best handling practices for wood crossties (sleepers)
2015 - IRG/WP 15-40714
Wooden crossties (sleepers) dominate the rail industry in the USA. Most ties are hardwood treated with oil-borne preservatives using pressure treatment. Incipient decay (called ‘stack burn’) commonly develops during the pre-treatment drying process and reduces tie performance and longevity. Practices to minimize stack burn and enhance wooden tie performance are discussed as an aid to non-wood ...
N Irby, J Lloyd, A Taylor, J Watt
Exemptions from harmonization measures under Article 100a(4): The second authorization of the German ban on PCP
1995 - IRG/WP 95-50040-28
R D Sloan
Quality assurance approach of the German TMT manufacturers
2010 - IRG/WP 10-40513
Due to an increasing number of TMT manufacturers in central Europe, an organisation of TMT manufacturers was founded in Germany in the beginning of 2010. Since the current level of product testing and property declaration is not satisfying, one of the first activities is the establishment of a quality assurance system. In this paper a concept for quality assurance (QA) will be outlined....
W Scheiding, C R Welzbacher, A O Rapp
The chemical wood preservation in the former GDR - an overview
1995 - IRG/WP 95-50057
For the disposal of chemically treated wood waste and for the remedial treatment of contaminated soils in facility yards a profound knowledge is required concerning the kind of preservatives used and the degree of pollution. In order to record the production of wood preservatives and the location of impregnation plants in the former GDR, documents of the Office for Standardisation Measuring Affair...
E Melcher, R-D Peek
The effect of stack height on the performance of preservatives used for the prevention of sapstain on seasoning wood
1997 - IRG/WP 97-10192
The performance of three anti-sapstain preservatives was investigated under field conditions in south east England. The preservatives under test were: copper-8-quinolinolate (Mitrol PQ8) trimethylalkylammoniumchloride and sodium hexanoate (Sinesto B) and chlorothalonil (Tuff Brite). The preservatives were tested on Corsican Pine grown in south east England. The field trial was set up to investigat...
J R Williams, D J Dickinson, J F Webber
Ambient-temperature borate dip-diffusion treatment of green railroad crossties
2011 - IRG/WP 11-40556
In the USA, borates are increasingly being applied prior to air seasoning and creosote treatment of railroad ties (railway sleepers). Borates are typically applied to green ties by vacuum pressure application at 1 to 10% disodium octaborate tetrahydrate (DOT) concentration or by traditional dip-diffusion treatments at elevated temperatures. Higher temperatures are used to maintain the 30 to 50% so...
Jae-Woo Kim, A M Taylor, C Köse
Mold Control for Treated Lumber in Block-Stack Storage Conditions
2012 - IRG/WP 12-30588
The mold development and control for freshly treated and block-stacked wood have been evaluated using a green house mold testing method. The results for the mold resistance of several commonly used water boron preservative treatment systems, such as ACQ, Copper Azole, and borates with and without inclusion of mold inhibitors are presented. The data suggest that the different preservative treatme...
L Jin, P Walcheski, A Preston
Pre-treatment decay and strength loss of railroad ties, and their prevention
2013 - IRG/WP 13-30610
Evidence of fungal decay in air-drying, untreated railway crossties is referred to as ‘stack burn’ in the industry. The deleterious consequences of stack burn on tie mechanical properties was confirmed by evaluating the impact bending toughness of wood samples taken from untreated tie stock air dried in the southern United States. These results suggest that careful consideration should be give...
A M Taylor, B Jordan, J D Lloyd
Borate treatment of green ties: An initial report on the effects on mechanical properties
2014 - IRG/WP 14-40686
Borates are increasingly used as components of wood preservative systems for railway cross ties (“sleepers”) in the USA. A variety of methods exist for incorporating the borate component; however, the so-called ‘two-step’ treatment, which involves treating the green tie in borate, followed by a pressure treatment with creosote or copper naphthenate after drying (‘seasoning’), offers th...
A M Taylor, J D Lloyd