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Chapter 1

Masonry Materials

בנייה
בנייה
Masonry is an assembly of individual units like concrete blocks, stones, or bricks laid in rows and bonded with mortar to create walls, floors, arches, ...
מלט
מלט
Ingredients such as Portland cement, an essential binding agent; hydrated lime, which improves workability; sand, a carefully screened inert aggregate; ...
תכונות מרגמה
תכונות מרגמה
Good mortar in a plastic state possesses good workability and the ability to retain water. Good workability allows the mortar to spread smoothly, adhere ...
לבנים
לבנים
Bricks are masonry units made from fired clay in various shapes, sizes, and colors. Conventionally, bricks were made in a simple wooden mold, producing a ...
מידות לבנים
מידות לבנים
The dimensions of a brick are determined by three measurements: its width, height, and length. Typically, bricks are sized to build walls in modules of 4 ...
סיווגי לבנים
סיווגי לבנים
The bricks used in construction are generally classified as facing bricks, building bricks, and hollow bricks. Facing bricks, also known as face bricks, ...
עמידות, חוזק ומראה לבנים
עמידות, חוזק ומראה לבנים
Freeze-thaw is the process where water absorbed within a brick expands upon freezing and contracts when it thaws, leading to the degradation of the brick. ...
בנייה לבנה
בנייה לבנה
The simplest brick masonry wall has one single wythe with a stretcher course. In this arrangement, the brick's longer edge runs horizontally, with its ...
טכניקות חיתוך לבנים
טכניקות חיתוך לבנים
Consider building a brick wall where a full brick cannot fit into the remaining space. To fit a brick in this space, a mason's hammer with a ...
מפרקי מרגמה בבנייה לבנה
מפרקי מרגמה בבנייה לבנה
Mortar joints are the spaces between bricks filled with mortar. Joints bind the bricks together, ensuring structural integrity and strength. The thickness ...
פתחים נרחבים בקירות לבנים
פתחים נרחבים בקירות לבנים
When building brick walls, openings for windows and doors need to be supported with lintels, corbels, and arches to withstand the loads from the wall ...
בנייה לבנה מחוזקת
בנייה לבנה מחוזקת
Reinforced brick masonry incorporates steel reinforcements within the hollow cores of the bricks or sandwiched between two masonry wythes, then secured ...
סוגי אבני בניין
סוגי אבני בניין
Building stones are sourced by extracting rock from natural rock deposits and shaping it into the specific forms and dimensions needed for building ...
חציבת אבן
חציבת אבן
Quarrying involves the meticulous extraction of stone from a quarry by either using controlled explosions or precision cutting techniques to remove the ...
בנייה באבן
בנייה באבן
Stone masonry falls mainly into two categories: rubble and ashlar. Rubble masonry uses uneven, naturally shaped stones, often found as river rocks or ...
ייצור יחידות בנייה מבטון
ייצור יחידות בנייה מבטון
Manufacturing concrete masonry units involves pouring stiff concrete, comprising Portland cement, aggregates, and water, into metal molds. This is ...
יציקת בטון
יציקת בטון
Consider the construction of a concrete masonry wall; first, the base is cleaned, the mortar is spread, and then the initial row of blocks for a corner ...
ייצור פלדה
ייצור פלדה
Steel manufacturing begins with smelting iron ore into cast iron in the blast furnace. Smelting involves layering the iron ore with a fuel called coke and ...
מוצרי פלדה מבניים
מוצרי פלדה מבניים
Structural steel products are manufactured in a structural mill, where the beam blank is reheated and refined through rollers into the required shape and ...
טכניקות הידוק פלדה
טכניקות הידוק פלדה
Steel sections can be fastened using rivets, bolts, or welding. A rivet is a steel fastener with a cylindrical shaft and a specially shaped head. The ...
מאפיינים מכניים של פלדה
מאפיינים מכניים של פלדה
Mechanical characteristics of steel such as tensile strength are determined by a tension test where a specimen is pulled in a gripping device. The tension ...
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