EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
4th Edition
ISBN: 8220102719569
Author: ZANIEWSKI
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 10, Problem 10.30QP
To determine
Write the four conditions that cause wood decay and occurrence of insects, and how the preservative eliminates wood decay.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Question 13
Which one of the following statements regarding durability is FALSE?
O a. Use class 5 includes the most challenging service condition for wood.
O b. Biological deterioration includes attack by bacteria, fungi, insects, or moulds.
O c.
Natural durability class 1 has the lowest durability.
Od. The highest risk for wood decay is in wet and warm conditions.
Question 34
Which one of these anatomical features of wood cells DOES NOT reduce wood permeability?
a. Inter-vessel pits
O b. Pit aspiration
C. Resin pockets
O d. Tyloses
A. Differentiate the types of seasoning of lumber.
1. Methods of Seasoning of Lumber
2. Artificial Seasoning of Lumber
B. Give at least 5 common causes of wood decay.
C. Types of Preserving Wood Process
Chapter 10 Solutions
EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
Ch. 10 - What are the two main classes of wood? What is the...Ch. 10 - Prob. 10.2QPCh. 10 - Prob. 10.3QPCh. 10 - Discuss the anisotropic nature of wood. How does...Ch. 10 - Prob. 10.5QPCh. 10 - Prob. 10.6QPCh. 10 - Prob. 10.7QPCh. 10 - Prob. 10.8QPCh. 10 - Prob. 10.9QPCh. 10 - Prob. 10.10QP
Ch. 10 - Prob. 10.11QPCh. 10 - Prob. 10.12QPCh. 10 - Prob. 10.13QPCh. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Prob. 10.16QPCh. 10 - Prob. 10.17QPCh. 10 - Prob. 10.18QPCh. 10 - Prob. 10.19QPCh. 10 - Prob. 10.20QPCh. 10 - Prob. 10.21QPCh. 10 - Prob. 10.22QPCh. 10 - Prob. 10.23QPCh. 10 - A wood specimen was prepared with actual...Ch. 10 - A pine wood specimen was prepared with actual...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.29QPCh. 10 - Prob. 10.30QPCh. 10 - Prob. 10.31QPCh. 10 - Prob. 10.32QPCh. 10 - Prob. 10.33QP
Knowledge Booster
Similar questions
- Question 14 Pick the correct definitions (one or more): To thrive, wood decaying fungi require: ☐a. a very high pH Ob. carbon dioxide O c. nitrogen 0 d. temperature below 5 °C e. moisturearrow_forwarda) Describe two (2) types of timber product and its usage b) Seasoning is very important to achieve good quality timber. i) Define timber seasoning. ii) Describe the method of seasoning carried out in timber. iii) Explain two (2) types of defects caused by insufficient seasoning.arrow_forwardA piece of wood is tested for moisture content. Its mass before drying is 850 grams and the mass after drying is 525 grams. What is the moisture content of wood?arrow_forward
- The moisture content of wood test was performed according to ASTM D4442procedure and produced the following data:Weight of specimen in the green condition = 317.5 gWeight of oven-dry specimen = 203.9 gCalculate the moisture content of the given wood.arrow_forwardQuestion 19 What fungus only cause a disfiguring of wood and not a loss in mechanical properties? O a. Staining fungi O b. Soft rot fungi О с. Brown rot fungi O d. White rot fungiarrow_forwardCollect a variety of samples of wood species used in construction and conduct various tests, such as:- Tension and compression tests.arrow_forward
- A piece of lumber dries in service from 50 percent moisture content to 10 percent. What is the expected shrinkage?arrow_forwardWhat are the two types of preservatives that can be used to protect wood from decay? How are these preservatives applied?arrow_forwardSubject is properties of behaviorarrow_forward
- A wood element had 150 mm diameter (radial direction) and a length of 1 m. The moisture content of the wood is 130% when it was prepared. After seasoning, the moisture content was reduced to 5%. Find the diameter and length of the seasoned element if the moisture- shrinkage relation follows the figure below.(Hint: you should use the curve for radial shrinkage for diameter and longitudinal shrinkage for length change in figure, FSP=28% according to the figure)arrow_forwardShrinkage (% of green dimensions) ii * Question Completion Status: A wood element has 100 mm depth (radial direction) and a moisture content of 165% when it is prepared. After drying in the kiln, the moisture content is reduced to 7%. a. Find the diameter of the seasoned element if the moisture- shrinkage relation follows the figure below. (Note: FSP is 28%) b. If the length of this element is 3.20 m, calculate the final length after drying. 10 Tangential 6Radial 5. Longitudinal 0.4 28 5. 10 15 20 25 30 Moisture content (%) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph 14px 工* 白Q5eE川 Arial Final ASSIGNMEN..doc Outline Template.docxarrow_forwardA wood pole with a diameter of 1 inch has a moisture content of 5%. The fiber saturation point(FSP) for this wood is 30%. The wood shrinks or swells 1% in the radial direction for every5% change in moisture content below FSP.a) What would be the percent change in the wood’s diameter if the wood’s moisture isincreased to 55%?b) Would the wood swell or shrink?c) What would be the new diameter?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Construction Materials, Methods and Techniques (M...Civil EngineeringISBN:9781305086272Author:William P. Spence, Eva KultermannPublisher:Cengage Learning
Construction Materials, Methods and Techniques (M...
Civil Engineering
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:Cengage Learning