13-12-2014, 11:15 PM
i am civil engineering student. i want to do my thesis on self curing concrete. so if you sent me any data that help me, i bless you by the name of god. my email is alexwak2[at]gmail.com
thank you
alemayehukuma
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self curing concrete literature review in pdf
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i am civil engineering student. i want to do my thesis on self curing concrete. so if you sent me any data that help me, i bless you by the name of god. my email is alexwak2[at]gmail.com
thank you
alemayehukuma
12-04-2017, 11:19 AM
The strength and durability of the concrete depends on the curing of the concrete. Code ACI-308 states that "internal hardening refers to the process by which cement is hydrated due to the availability of additional internal water that is not part of the mixing water." Conventionally, curing concrete means creating conditions such that water is not lost from the surface, ie curing is taken to pass "from the outside to the inside". In contrast, "internal curing" allows curing "from the inside to the outside" through the inner shells (in the form of thin, thin aggregates, superabsorbent polymers or saturated wood fibers). "Internal curing" is also often referred to as "Self-healing". Any neglect in curing will interfere with the strength and durability of the concrete. Retention reducing agents and light aggregates such as polyethylene glycol and Leca, silica fume and stone chips are respectively used to achieve effective curing results.
Proper curing of concrete structures is important to meet performance and durability requirements. In conventional curing, this is achieved by external curing applied after mixing, placement and finishing. Internal curing or internal curing is a technique that can be used to provide additional moisture in the concrete for more efficient hydration of the cement and reduced self-drying. The construction industry uses a lot of water in the name of curing. The days are not so far that the entire construction industry has to switch to an alternative curing system, not only to save water for the sustainable development of the environment, but also to promote indoor and outdoor construction activities even in Remote areas where there is water shortage. Curing is the process of controlling the rate and degree of moisture loss of the concrete during the hydration of the cement. It may be after being placed in position (or during the manufacture of concrete products), thus providing time for the hydration of the cement to occur. Since cement hydration takes time - days, and even weeks instead of hours - healing must be undertaken for a reasonable period of time. If the concrete must reach its potential strength and durability, curing can also encompass temperature control as this affects the speed at which the cement is hydrated. The curing period may depend on the required properties of the concrete, the purpose for which it is to be used, and the ambient conditions, i.e. the temperature and the relative humidity of the surrounding atmosphere. The curing is primarily designed to keep concrete wet, avoiding the loss of moisture from the concrete during the period in which it is gaining strength. The curing can be applied in various ways and the most suitable curing means can be dictated by the site or method of construction. Curing is the maintenance of a satisfactory moisture content and temperature in the concrete for a period of time immediately after placement and finishing so that the desired properties can be developed. The need for adequate concrete hardening can not be overstated. The curing has a strong influence on the properties of the hardened concrete; Proper curing will increase durability, strength, watertightness, abrasion resistance, volume stability and freeze-thaw resistance and de-scaling. A durable concrete is one that performs satisfactorily under the condition of intended exposure during its designed service life. In addition to the standard concrete mix, some additional compounds are used in appropriate doses and materials such as fly ash to increase the durability and strength of the concrete mix.
Proper curing of concrete structures is important to meet performance and durability requirements. In conventional curing, this is achieved by external curing applied after mixing, placement and finishing. Internal curing or internal curing is a technique that can be used to provide additional moisture in the concrete for more efficient hydration of the cement and reduced self-drying. The construction industry uses a lot of water in the name of curing. The days are not so far that the entire construction industry has to switch to an alternative curing system, not only to save water for the sustainable development of the environment, but also to promote indoor and outdoor construction activities even in Remote areas where there is water shortage. Curing is the process of controlling the rate and degree of moisture loss of the concrete during the hydration of the cement. It may be after being placed in position (or during the manufacture of concrete products), thus providing time for the hydration of the cement to occur. Since cement hydration takes time - days, and even weeks instead of hours - healing must be undertaken for a reasonable period of time. If the concrete must reach its potential strength and durability, curing can also encompass temperature control as this affects the speed at which the cement is hydrated. The curing period may depend on the required properties of the concrete, the purpose for which it is to be used, and the ambient conditions, i.e. the temperature and the relative humidity of the surrounding atmosphere. The curing is primarily designed to keep concrete wet, avoiding the loss of moisture from the concrete during the period in which it is gaining strength. The curing can be applied in various ways and the most suitable curing means can be dictated by the site or method of construction. Curing is the maintenance of a satisfactory moisture content and temperature in the concrete for a period of time immediately after placement and finishing so that the desired properties can be developed. The need for adequate concrete hardening can not be overstated. The curing has a strong influence on the properties of the hardened concrete; Proper curing will increase durability, strength, watertightness, abrasion resistance, volume stability and freeze-thaw resistance and de-scaling. A durable concrete is one that performs satisfactorily under the condition of intended exposure during its designed service life. In addition to the standard concrete mix, some additional compounds are used in appropriate doses and materials such as fly ash to increase the durability and strength of the concrete mix.
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