Which is the most common alternative of cement in concrete?

Lime concrete
Lime concrete is used commonly as it does have much strength whereas asphalt concrete is used rarely. Therefore, Lime is the most common alternative to cement in concrete.

Can we replace cement with lime?

Lime can be used as a cement replacement in concrete. The results from this research show a linear decline in strength with a linear increase in the relative percentage of lime to cement.

How are houses built without cement?

Walls are made of local burnt bricks, plastered with hand-finished lime and sand mortar. However, larger part of the wall is made of rammed earth, left exposed or partly mud plastered. There are not too many lintels as per the design; the few that appear are done with single piece stone slab.

Which compound of cement gives desired strength?

10. Which component of concrete gives it desired compressive strength? Explanation: Aggregates used are sand, gravel or crushed stones. These have high compressive strength.

What is no cement concrete?

Fly ash-based Geopolymer concrete is a ‘new’ material that does not need the presence of Portland cement as a binder. Geopolymer is an inorganic alumino-Hydroxide polymer synthesized from predominantly silicon (Si) and aluminum (Al) materials of geological origin or byproduct materials such as fly ash.

What is used as a substitute for cement?

Cement replacement materials are necessary, including coal fly ash, ground granulated blastfurnace slag, silica fume, ground glass natural pozzolans or calcined clay (eg, metakaolin). Typical compositions of the main cement replacements are given in Table 18.4.

Is accrete a good substitute for concrete?

Accrete is a lighter, stronger and less expensive substitute for concrete Inventor Jinhong Zhang, associate professor of mining and geological engineering in the University of Arizona’s College of Engineering, developed a new substitute for concrete that has a number of advantages over traditional Portland cement.

What is the best alternative to Portland cement?

In other countries (e.g. Cuba) lime/pozzolana/Portland cement blends are sold as an alternative to Portland cement. Lime-pozzolana cement by itself can make an excellent cementing material for low-rise construction or mass concrete and in some countries (e.g. Indonesia) is still produced extensively.

Is there an environmentally friendly alternative to concrete?

Apart from making it environmentally friendly, fly ash also makes concrete resistant to alkali-silica reactivity. Just like fly ash, blast furnace slag is a byproduct that can be recycled and used to make an environmentally friendly alternative to concrete.