bunding, also called a bund wall, is a constructed retaining wall around storage 'where potentially polluting substances are handled, processed or stored, for the purposes of containing any unintended escape of material from that area until such time as a remedial action can be taken.'
building insulation materials are the building materials, which form the thermal envelope of a building or otherwise reduce heat transfer.. insulation may be categorized by its composition natural or synthetic materials , form batts, blankets, loose-fill, spray foam, and panels , structural contribution insulating concrete forms, structured panels, and st bales , functional mode .
chromated copper arsenate cca is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.it is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.like other copper-based wood preservatives, it imparts a greenish tint to treated timber.
pressure-treated timber: though not as long-lasting as masonry options, this material provides a rustic, natural look, and can usually be implemented for do-it-yourself walls up to four feet tall .
cross-laminated timber clt a sub-category of engineered wood is a wood panel product made from gluing together layers of solid-sawn lumber, i.e., lumber cut from a single log.each layer of boards is usually oriented perpendicular to adjacent layers and glued on the wide faces of each board, usually in a symmetric way so that the outer layers have the same orientation.
a concrete masonry unit cmu is a standard size rectangular block used in building construction.cmus are some of the most versatile building products available because of the wide variety of appearances that can be achieved using concrete masonry units.
it is brittle when bent, so does not have the same load-bearing features as oregon pine douglas fir, pseudotsuga . p. radiata is used in house construction as weatherboards, posts, beams or plywood, in fencing, retaining walls, for concrete formers. it is also used to a limited extent in boat building where untreated ply is sometimes used, but .
choosing pressure treated decking. bob schmidt shows you somethings you need to know when selecting pressure treated decking material when building a wood deck
pressure-treated glulam timbers or timbers manufactured from naturally durable wood species are well suited for creating bridges and waterfront structures. wood's ability to absorb impact forces created by traffic and its natural resistance to chemicals, such as those used for de-icing roadways, make it ideal for these installations.
in modern, wood construction, sills usually come in sizes of 2×4, 2×6, 2×8, and 2×10. in stick framing, the sill is made of treated lumber, and is anchored to the foundation wall, often with j-bolts, to keep the building from coming off the foundation during a severe storm or earthquake. building codes require that the bottom of the sill .
a sill plate or sole plate in construction and architecture is the bottom horizontal member of a wall or building to which vertical members are attached. the word plate is typically omitted in america and carpenters speak simply of the 'sill'. other names are ground plate, ground sill, groundsel, and midnight sill. sill plates are usually composed of lumber but can be any material.
poles, from which these buildings get their name, are natural shaped or round wooden timbers 4 to 12 inches 102 to 305 mm in diameter. the structural frame of a pole building is made of tree trunks, utility poles, engineered lumber or chemically pressure treated squared timbers which may be buried in the ground or anchored to a concrete slab .
fencepost limestone, post rock limestone, or stone post is a stone bed in the great plains notable for its historic use as fencing and construction material in north-central kansas resulting in unique cultural expression. the source of this stone is the topmost layer of the greenhorn limestone formation.it is a regional marker bed as well as a valued construction material of the late 19th and .
a bulkhead is a retaining wall, such as a bulkhead within a ship or a watershed retaining wall. it may also be used in mines to contain flooding.. coastal bulkheads are most often referred to as seawalls, bulkheading, or riprap revetments. these manmade structures are constructed along shorelines with the purpose of controlling beach erosion.construction materials commonly used include wood .
labile hypertension occurs when there are unexpected changes in blood pressure.the term can be used to describe when people have blood pressure measurements that abruptly fluctuates from being abnormally high, approximately 130/80mm hg or over and returns to its normal range.. patients who have labile hypertension may have higher cardiac output and lower total peripheral resistance than others.
the development of creosote pressure treatment by john bethel was also an important advancement in timber piling construction. historic buildings supported by timber piles may either be either treated with creosote or chromated copper arsenate. types of wood used
lumber north american english or timber as used in other areas is a type of wood that has been processed into beams and planks, a stage in the process of wood production.lumber is mainly used for structural purposes but has many other uses as well. there are two main types of lumber. it may be supplied either rough-sawn, or surfaced on one or more of its faces.
alkaline copper quaternary, usually abbreviated acq, is a type of water-based wood preservative product containing a soluble copper ii complex and quaternary ammonium alkyl- or aryl-substituted compounds 'quats' .thus the product was originally called ammoniacal copper/quaternary ammonium.
definition. a wall for holding in place a mass of earth or the like, as at the edge of a terrace or excavation. a retaining wall is a structure designed and constructed to resist the lateral pressure of soil, when there is a desired change in ground elevation that exceeds the angle of repose of the soil.. a basement wall is thus one kind of retaining wall.
a retaining wall is a structure that holds back earth. retaining walls stabilize soil and rock from downslope movement or erosion and provide support for vertical or near-vertical grade changes. cofferdams and bulkheads, structures to hold back water, are sometimes also considered retaining walls.
a deep foundation is a type of foundation that transfers building loads to the earth farther down from the surface than a shallow foundation does to a subsurface layer or a range of depths. a pile or piling is a vertical structural element of a deep foundation, driven or drilled deep into the ground at the building site.