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第267章 黑板和粉笔(1 / 2)

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常叔坤以风卷残云之势稀里呼噜塞了几碗饭下肚,不等天成把饭吃完,嘴一抹就将碗筷一撂,开口催促起戚悦来。

“悦娘我吃好了,咱开工吧,早点把黑板和粉笔做出来,学堂里也能早点用上。”

常仲梁都同他交代过了,悦娘说的这个黑板和粉笔,做出来后不只学堂里能用上,在别的地方也能有用处。

推广开来后不说能福泽天下吧,惠及一众读书人是肯定的,当然得赶紧做出来。

他心下一片火热,只觉得浑身上下有用不完的劲,摩拳擦掌的等待着开工。

天成听得这话,也不慢慢啃鸭肉了,加速往嘴里扒饭。

“皇帝还不差饿兵呢,你是吃饱了没错,让天成饿着肚子陪你干活啊。”

戚悦说了常叔坤一句,又对天成说道:“你慢慢吃着,不差这点时间,饭还是要吃好的。”

黑板的制作很是简单。

找面砖墙抹上水泥,抹匀找平再用细砂纸打磨光滑,最后涂上几层黑板漆,晾干就行。

这种是戚悦精挑细选出来的,成本低廉易制作,也是最符合现如今这情况的水泥黑板。

整个常家庄的砖房目前只有两处,就是她家和祠堂。

她家自然是不行的,崭崭新的精装房,一水的白墙黑瓦,里里外外的墙壁都抹过水泥刷过大白,总不能把墙皮铲了来做黑板吧?

而且老式黑板用的时间长了就像花脸猫一样,斑驳陆离,颜色不一,还会风化起壳,很是难看。

再一个,黑板做在她家墙上,肯定免不了会被画,以后孩子们画的顺手了,给旁边的白墙也来上几笔怎么办?

常二毛可是有前科的!

倒是祠堂为了节约材料没有抹水泥,还是原汁原味的砖墙。

所以她和常仲梁一致认为,实验用的黑板还是做在祠堂外墙上的好,以后可以拿来出黑板报,也可以当个公告栏来用。

戚悦领着常叔坤出了房门,吩咐他道:“坤叔,你现在去湖边挖车沙,然后送去祠堂,剩下的东西,等下我和天成拿过去就行,记得啊,这次的沙要越干净越细越好。”

常叔坤点了点头就直奔后院套车去。

天成赶紧的扒完饭出来,问戚悦,“大嫂我吃好了,有啥我能做的?”

戚悦给了他一块大的石膏和一个碗。

“先把这石膏弄碎,越碎越好,装在这碗里。”

天成拿了石膏,去外面捡了块石头握在手里,在院子里找了个角落,蹲在水泥地上匡匡的砸起石膏来。

看着常叔坤赶了牛车出门挖沙,天成在碎石膏,戚悦也没闲着。

她取了个碗,开始调配起黑板漆来。

黑板漆的具体配方,她是不知道的,常大宝也没有这方面的知识储备,但她想着应该也不会只是简单的刷几层黑漆就行,只好自己动手实验。

找了块大木板,依次刷上黑漆,黑漆加桐油,黑漆桐油加墨汁,黑漆桐油加锅底灰等等……

院子角落里,天成三两下将石膏砸碎,又细细的砸了一通,看着差不多了,将石膏粉装进碗里,端着碗就去找戚悦。

“大嫂,我能不能用用石磨?这石膏粉磨上几遍应该还能再细些。”

“嗯?”

戚悦看着伸到眼前的碗,捏着刷子站了起来。

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