Which big brother and sister can help translate the next text? Thank you!!!! 5

Chinese: Chinese Eat: eat day:

sky 健康:healthy So:so very:

Very food:food in China:in China There are some words I don't remember I'm a primary school student, that's all I know.

When placement and consolidation are not performed correctly, stiff concrete often contains a large number of pores, which in turn leads to a significant drop in strength [5]. Due to the friction between the concrete mixture and the hydration of the cement during the delivery process may lead to an increase in the temperature of the mixer truck which in turn involves the reduction of fresh concrete [6] free of water. As the free-water concrete hardens it down, which in turn leads to a reduction in workability [7].

This retempering practice is often done to restore and maintain the initial slump concrete viable construction site in response to the need to expedite the casting operation and reduce the integration work. Retempering is possible.

Water is performed only as a plasticizer or in combination.

water and plasticizers [8,9]. Retempering alone with water

will result in a significant increase due to the loss of excess water intensity.

The ratio of water to cement concrete mix [10]. However, retempering is combined with water, and plasticizers will.

Strength in terms of losses is a useful experience [11]. Consistency.

Improvement with plasticizers is a clear advantage.

Consider the strength gain of concrete, but it illustrates.

Rheological properties of freshly mixed concrete in Ref. [12-15].

May vary depending on the type and amount of plasticizer used.

This may be more complex fly ash concrete.

Silica fume and long delivery times, especially when this problem.

16,17]。Ravena [16] in his work shows that long-term agitation.

There are two specific technical aspects that should be kept inmind. One is the slump loss, and the other is the compressive strength increase by up to a certain mixing time.

In this study, it aims to clarify the impact on fly ash and slump loss and/or improvement in consistency and strength silica fume subjected to long-term mixing of concrete. Different combinations of concrete mixtures are compared to the usual test mix to monitor changes in relationships.

Restlessness and slump loss depending on the time. To do this, minerals.

In different proportions of additives are added to the combination instead.

Replacement instead of common practice. The concrete mixture of the C25 30 class has an initial slump of about 200 10 mm without mineral additives.

Production of fly ash and silica fume. Agitation at the end of each month.

During the preparation of the compressive strength of each combined cube of 150 mm.

Intensity measurement. Concrete also produces a measure of 28-day compressive strength. The results obtained are compared with those without fly ash and silica fume. 2。Protocols and procedures.