Building Regulations Section 5.2 of the Building Regulations 2010 Approved Document C, “Site preparation and resistance to contaminants and moisture”source requires that buildings should be constructed to resist rising damp, penetrating damp, and condensation. Walls should: Similar requirements are also made in reference to floors in Section 4 of the document. Homes (Fitness for HumanContinue reading “UK Statutory Building Regulation and Code”
Author Archives: looi101
Water surface tension (capillarity)
Evaporation-limit capillary refers to the movement of water through capillary action is primarily restricted by evaporation Surface tension contributes to capillary action (capillarity) Surface tension allows objects denser than water to float, for example, if you placed a needle gently on the surface of the water it would float, (everyday phenomena raindrop formation, water beadsContinue reading “Water surface tension (capillarity)”
Dampness in construction
Dampness control is fundamental to the proper functioning of any building. Controlling moisture is important to protect occupants from adverse health effects and to protect the building. The unwanted moisture enables the growth of various fungi in wood, causing rot and mould health issues(Airborne mold concentrations have the potential to be inhaled. Asthma is alsoContinue reading “Dampness in construction”
Chinese society issues-Moral Cynicism and broken social fabric
Chinese society’s issue – moral cynicism and its broken social fabric can be deeply tied to China’s historical legacies. Cynicism according to Cambridge dictionary it means, the belief that people are only interested in themselves and are not sincere. Moral cynicism would be referring to a skeptical attitude toward moral principles, values, and the motivationsContinue reading “Chinese society issues-Moral Cynicism and broken social fabric”
Cultural Revolution
Cultural Revolution is a nationwide political movement, a decade long widespread social upheaval, aided by zealous youth, particularly the Red Guards. Inflicted deep and long-lasting damage across China’s economy, social fabric, education, culture and individual lives. Background:Mao’s policy failures lead to his prestige fell within CCP. During the late 1960s, various factions within the partyContinue reading “Cultural Revolution”
All about Concrete
https://en.wikipedia.org/wiki/Roman_concrete https://en.wikipedia.org/wiki/Damp_(structural) https://en.wikipedia.org/wiki/Coal_combustion_products#Fly_ash Concrete casting and curing: proper curing is critical because it helps prevent the concrete from drying too quickly, which can lead to cracking and reduce the final strength of the concrete. During the curing process, the cement reacts chemically with water in a reaction known as hydration. This reaction forms strong bondsContinue reading “All about Concrete”
Construction Techniques and Architecture Terms
Adhesives
https://en.wikipedia.org/wiki/Chaser’s_pitch https://en.wikipedia.org/wiki/Mastic_(plant_resin)Epoxy Resin https://www.youtube.com/watch?v=mJYxjOghisw Unlike paint or glue, that simply dries by evaporation. Epoxy resin cures through molecular bonding, forming an incredibly tight and durable cross-linked structure. Once it cured it does not melt, soften, dissolve easily Applications Art and Crafts: Popular in resin art, jewelry making, and as a coating for various surfaces. Adhesives:Continue reading “Adhesives”
Fuels
Steel Making
Reducing agent helps to remove oxygen from the iron ore a blast furnace, used for smelting iron ore(in the form of iron oxides like hematite, or magnetite), it operates around 1600°C to produce molten iron, is filled with layers of iron ore, coke, and limestone The reaction might look like this Fe2O3+3C→2Fe+3CO In this reaction,Continue reading “Steel Making”
Meandering leads to perfection 